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While it costs about the same to run nuclear plants as other types of power plants, it is the fixed costs that stem from building nuclear plants that makes it more expensive for them to generate electricity.
AWhile it costs about the same to run nuclear plants as other types of power plants, it is the fixed costs that stem from building nuclear plants that makes it more expensive for them to generate electricity.&&BWhile the cost of running nuclear plants is about the same as for other types of power plants, the fixed costs that stem from building nuclear plants make the electricity they generate more expensive.&&CEven though it costs about the same to run nuclear plants as for other types of power plants, it is the fixed costs that stem from building nuclear plants that makes the electricity they generate more expensive.&&DIt costs about the same to run nuclear plants as for other types of power plants, whereas the electricity they generate is more expensive, stemming from the fixed costs of building nuclear plants.&&EThe cost of running nuclear plants is about the same as other types of power plants, but the electricity they generate is made more expensive because of the fixed costs stemming from building nuclear plants.&&
正确答案: B
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107. While it costs about the same to run nuclear plants as other types of power plants, it is the fixed costs that stem from building nuclear plants that makes it more expensive for them to generate electricity.(A) While it costs about the same to run nuclear plants as other types of power plants, it is the fixed costs that stem from building nuclear plants that makes it more expensive for them togenerate electricity.(B) While the cost of running nuclear plants is about the same as for other types of power plants, the fixed costs that stem from building nuclear plants make the electricity they generate more expensive.(C) Even though it costs about the same to run nuclear plants as for other types of power plants, it is the fixed costs that stem from building nuclear plants that makes the electricity they generate more expensive.(D) It costs about the same to run nuclear plants as for other types of power plants, whereas the electricity they generate is more expensive, stemmingfrom the fixed costs of building nuclear plants.(E) The cost of running nuclear plants is about the same as other types of power plants, but the electricity they generate is made more expensive because of the fixed costs stemming from building nuclear plants.B选项中的for是什么意思？为什么不能删掉？谢谢！
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本帖最后由 hemodata 于
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barrymachine 发表于
看了其他人的帖子我概括一下下：(A) While it costs about the same to run nuclear plants as other ty ...
我觉得barry说的很对，在此我来补充一下，如果有不对欢迎大家指正
——虽然前面的回复可以帮到大家明晰选项，但是并没有戳到本质
首先，五个选项可以分为两组
（1）ACD，开头结构都是it costs，其比较对象是to run different plants
（2）BE，开头是the costs of running，其比较对象是costs
我来把A、B选项的第一句话补充完整，大家就可以更好的看到区别了
A While it costs about thesame to run nuclear plants as other types of power plants,
——& to run nuclear plants costs about the same as (to run) other types of power plants
B While the cost of runningnuclear plants is about the same as for other types of power plants,
——& the cost of running n-plants is about the same as (the running costs) for other types ofpower plants
如果从语义来看，我们会发现，这道题想要比较的是cost本身。因为原句想要表达的是：
虽然运营成本基本一样，但是由于投建n-plant的固定成本高，因此n-plant发电总成本高。
因此答案只能集中在B和E中间选。
由于后一句已经省略了cost，那么介词结构for不能省略。
我们再回过头来看OG答案中提到for的问题的地方，应该就会觉得很清晰了：
D The preposition for is redundant in comparing the two objects of run.E The preposition for is necessary in the comparison of the costs.
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自己顶一下吧
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同求解释啊
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不用for的话原句变成cost of running nuclear plants is about the same as other types of power plants，比较对象变成cost of runnng nuclear和 cost of other plants，核工厂的运营成本与其它工厂的成本（可能是收购成本）对比。当用for时，句子变成the cost for other plants，歧义消除。
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同样不懂，那个for不是不对称吗？the cost of running unclear plants 怎么和介词短语for other types of power plants对称呢？如果像3楼说的那应该是that of types of &power plants.这不是很好的对称吗？怎么就用for呢？
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看了其他人的帖子我概括一下下：(A) While it costs about the same to run nuclear plants as other types of power plants, it is the fixed costs that stem from building nuclear plants that makes it more expensivefor them to generate electricity.(B) While the cost of running nuclear plants is about the same as for other types of power plants, the fixed costs that stem from building nuclear plants make the electricity they generate more expensive.(C) Even though it costs about the same to run nuclear plants as for other types of power plants, it is the fixed coststhat stem from building nuclear plants that makes the electricitthey generate more expensive.(D) It costs about the same to run nuclear plants as for other types of power plants, whereas the electricity they generate is more expensive, stemming from the fixed costsof building nuclear plants.(E) The cost of running nuclear plants is about the same as other types of power plants, but the electricity they generate is made more expensive because of the fixed costs stemming from buildingnuclear plantsA中as前面是it costs ....是一个句子，as后面是other types...是一个名词，不平行B中as前面是cost，后面是（cost）for，cost是省略的，所以前面后面都是名词，也就平行了C中前十it cost，句子，后面是（cost）for是名词，所以不平行D和C一样E前面是cost，后面是types虽然同是名词，但是明显就不可用平行结构。这样对前半部分的分析就可以判断对错了，只是，cost为什么要省略而用for，我还是比较迷惑的，但是选项没有给of神马的，也没有干扰了~~~
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the cost of 和（the cost）for。。。平行，省略了括号内的部分。如果有更好的解析，我会记得贴上来。
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3L正解。。
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看了其他人的帖子我概括一下下：(A) While it costs about the same to run nuclear plants as other types of power plants, it is the fixed costs that stem from building nuclear plants that makes it more expensivefor them to generate electricity.(B) While the cost of running nuclear plants is about the same as for other types of power plants, the fixed costs that stem from building nuclear plants make the electricity they generate more expensive.(C) Even though it costs about the same to run nuclear plants as for other types of power plants, it is the fixed coststhat stem from building nuclear plants that makes the electricitthey generate more expensive.(D) It costs about the same to run nuclear plants as for other types of power plants, whereas the electricity they generate is more expensive, stemming from the fixed costsof building nuclear plants.(E) The cost of running nuclear plants is about the same as other types of power plants, but the electricity they generate is made more expensive because of the fixed costs stemming from buildingnuclear plantsA中as前面是it costs ....是一个句子，as后面是other types...是一个名词，不平行B中as前面是cost，后面是（cost）for，cost是省略的，所以前面后面都是名词，也就平行了C中前十it cost，句子，后面是（cost）for是名词，所以不平行D和C一样E前面是cost，后面是types虽然同是名词，但是明显就不可用平行结构。这样对前半部分的分析就可以判断对错了，只是，cost为什么要省略而用for，我还是比较迷惑的，但是选项没有给of神马的，也没有干扰了~~~-- by 会员 zhima427 ( 14:47:31)
其实A 中的比较是没有问题的。 it costs about the same to run nuclear plants as other types of power plants 这句话中“it” 是 “to run nuclear plants” 的 placeholder； 改写一下就是：To run nuclear plants costs about the same &as other types of power plants。根据比较句相同VERB可以省略的原则，这句话后半句省略了to run.完整写法是：To run nuclear plants costs about the same &as( to run) other types of power plants。而且OG中对D选项的解释也验证了这个说法，OG： The preposition &for& is redundant in comparing the two objects of &run&....所以OG认为 这个结构是 省略“to run”而去比较“to run” 后面的宾语.....正确选项是在比较 the cost of running plant A 和 the cost for plant B= the cost of running plant B 所以省略了for就变成了 cost 跟 plant的比较； 如果使用that of plant B（买工厂B的花费）那就改变了意思，the cost for plant B（run plant B 的花费）如果必须要完全一致的话，那应该是 &the cost of running nuclear plants is about the same as that of running other types of power plants......`
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While it costs about the same to run nuclear plants as other types of power plants, it is the fixed costs that stem from building nuclear plants that makes it more expensive for them to generate electricity.
AWhile it costs about the same to run nuclear plants as other types of power plants, it is the fixed costs that stem from building nuclear plants that makes it more expensive for them to generate electricity.&&BWhile the cost of running nuclear plants is about the same as for other types of power plants, the fixed costs that stem from building nuclear plants make the electricity they generate more expensive.&&CEven though it costs about the same to run nuclear plants as for other types of power plants, it is the fixed costs that stem from building nuclear plants that makes the electricity they generate more expensive.&&DIt costs about the same to run nuclear plants as for other types of power plants, whereas the electricity they generate is more expensive, stemming from the fixed costs of building nuclear plants.&&EThe cost of running nuclear plants is about the same as other types of power plants, but the electricity they generate is made more expensive because of the fixed costs stemming from building nuclear plants.&&
正确答案: B
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107. While it costs about the same to run nuclear plants as other types of power plants, it is the fixed costs that stem from building nuclear plants that makes it more expensive for them to generate electricity.(A) While it costs about the same to run nuclear plants as other types of power plants, it is the fixed costs that stem from building nuclear plants that makes it more expensivefor them to generate electricity.(B) While the cost of running nuclear plants is about the same as for other types of power plants, the fixed costs that stem from building nuclear plants make the electricity they generate more expensive.(C) Even though it costs about the same to run nuclear plants as for other types of power plants, it is the fixed coststhat stem from building nuclear plants that makes the electricitthey generate more expensive.(D) It costs about the same to run nuclear plants as for other types of power plants, whereas the electricity they generate is more expensive, stemming from the fixed costsof building nuclear plants.(E) The cost of running nuclear plants is about the same as other types of power plants, but the electricity they generate is made more expensive because of the fixed costs stemming from buildingnuclear plants正确答案是B我能理解但是解释中说道“The emphatic constructionit is X that does Y(as in the phrase it is Jane who knows the answer) should be used only when there is a compelling reason to emphasize the doer of theaction. In this sentence, the emphatic construction is used without good reason.”就是说强调句型只能用于“当有一个说服力的原因时，才用来强调动作的发出者”，而这一题没有好的原因...请大神解答什么情况才算是“有说服力的原因”（我觉得这句话中，正因为“核电厂的固定建造成本高”才使得“发的电更贵”，算是充分的理由啊......或者是有什么涉及专业知识的理由我不知道）什么时候用强调句型才不是错的？多谢了！
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解释说的肯定是对的。强调句式肯定是为了强调某一原因，这一个原因理应是重要的，效果是显著的。但是针对这道题，则不需利用强调句的原则来选择。与其弄明白答案为什么正确，不如看看其他选项为什么错误。A makes的主谓不一致，绝对错误，杀C the same as 的比较结构不平行（不定式和介词短语）；makes的主谓依然不一致，杀D the same as的比较结构依然不平行，杀；句尾stemming的逻辑主语应是the fixed cost，句中根本木有E the same as的比较结构还是不平行，只不过这里是cost和types不对等了，杀再来看看正确答案为什么正确(B) While the cost of running nuclear plants is about the same as for other types of power plants, the fixed costs that stem from building nuclear plants make the electricity they generate more expensive.以上提到的错误B中都避免了；the same as结构中，在as后省略了cost
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还有，有时做题是一回事，知识点是另一回事。
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多谢您的解答~我也明白这道题可以根据别的语法点排除出正确答案~可是就是看到这个强调句型的语法点，觉得不太理解，想弄明白，以后遇到不会犯错啊~您说到“强调句式肯定是为了强调某一原因，这一个原因理应是重要的，效果是显著的”，我自己是觉得这道题的原因是值得拿出来单独用强调句型的，您能不能指点下为什么这道题是不能用强调句型的啊？
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还有，有时做题是一回事，知识点是另一回事。-- by 会员 jeffery2541 ( 17:39:08)
是不是要引用您才看得到...
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还有，有时做题是一回事，知识点是另一回事。-- by 会员 jeffery2541 ( 17:39:08)
是不是要引用您才看得到...-- by 会员 HiDamian ( 18:27:18)
我刚好自己回来看帖子了，最好是引用一下的，还有不用称呼您哈~在这道题目上，我认为用强调句式是可以的，但是可能会有一点问题：It is the fixed costs that stem from building nuclear plants that make it more expensive to generate electricity.将题目中的强调句部分摘下来并改正确（语法）就是上句。我试着问了自己：建造厂房的固定成本足以使核电厂发电更贵吗？好像不至于，这可能就是解析里面说的需要这个原因compelling的原因。至于这里建造厂房的固定成本这个原因为什么不compelling，可以这样理解：其他方式的电厂不也得建造厂房嘛，句子也没说这个厂房就贵啊，还有造成发电贵的原因还有别的啊，建造核电厂房可能导致发电贵，但也没必要强调啊。。。= =。最后，我发现了另外一个问题。。。make it more expensive to generate electricity本身就是错的。。。。。好像应该是make it more costly to generate electricity
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还有，有时做题是一回事，知识点是另一回事。-- by 会员 jeffery2541 ( 17:39:08)
是不是要引用您才看得到...-- by 会员 HiDamian ( 18:27:18)
我刚好自己回来看帖子了，最好是引用一下的，还有不用称呼您哈~在这道题目上，我认为用强调句式是可以的，但是可能会有一点问题：It is the fixed costs that stem from building nuclear plants that make it more expensive to generate electricity.将题目中的强调句部分摘下来并改正确（语法）就是上句。我试着问了自己：建造厂房的固定成本足以使核电厂发电更贵吗？好像不至于，这可能就是解析里面说的需要这个原因compelling的原因。至于这里建造厂房的固定成本这个原因为什么不compelling，可以这样理解：其他方式的电厂不也得建造厂房嘛，句子也没说这个厂房就贵啊，还有造成发电贵的原因还有别的啊，建造核电厂房可能导致发电贵，但也没必要强调啊。。。= =。最后，我发现了另外一个问题。。。make it more expensive to generate electricity本身就是错的。。。。。好像应该是make it more costly to generate electricity-- by 会员 jeffery2541 ( 18:51:42)
多谢啦，解释的这么详尽~那以后对这种没有明确有确定联系的问题，就尽量不用强调句型吧~多谢~
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嗯嗯~~不客气啦~共同进步嘛~
还有，有时做题是一回事，知识点是另一回事。-- by 会员 jeffery2541 ( 17:39:08)
是不是要引用您才看得到...-- by 会员 HiDamian ( 18:27:18)
我刚好自己回来看帖子了，最好是引用一下的，还有不用称呼您哈~在这道题目上，我认为用强调句式是可以的，但是可能会有一点问题：It is the fixed costs that stem from building nuclear plants that make it more expensive to generate electricity.将题目中的强调句部分摘下来并改正确（语法）就是上句。我试着问了自己：建造厂房的固定成本足以使核电厂发电更贵吗？好像不至于，这可能就是解析里面说的需要这个原因compelling的原因。至于这里建造厂房的固定成本这个原因为什么不compelling，可以这样理解：其他方式的电厂不也得建造厂房嘛，句子也没说这个厂房就贵啊，还有造成发电贵的原因还有别的啊，建造核电厂房可能导致发电贵，但也没必要强调啊。。。= =。最后，我发现了另外一个问题。。。make it more expensive to generate electricity本身就是错的。。。。。好像应该是make it more costly to generate electricity-- by 会员 jeffery2541 ( 18:51:42)
多谢啦，解释的这么详尽~那以后对这种没有明确有确定联系的问题，就尽量不用强调句型吧~多谢~-- by 会员 HiDamian ( 19:04:16)
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解释说的肯定是对的。强调句式肯定是为了强调某一原因，这一个原因理应是重要的，效果是显著的。但是针对这道题，则不需利用强调句的原则来选择。与其弄明白答案为什么正确，不如看看其他选项为什么错误。A makes的主谓不一致，绝对错误，杀C the same as 的比较结构不平行（不定式和介词短语）；makes的主谓依然不一致，杀D the same as的比较结构依然不平行，杀；句尾stemming的逻辑主语应是the fixed cost，句中根本木有E the same as的比较结构还是不平行，只不过这里是cost和types不对等了，杀再来看看正确答案为什么正确(B) While the cost of running nuclear plants is about the same as for other types of power plants, the fixed costs that stem from building nuclear plants make the electricity they generate more expensive.以上提到的错误B中都避免了；the same as结构中，在as后省略了cost-- by 会员 jeffery2541 ( 17:38:22)
这边的cost for好奇怪呀！ 没看到这个词的用法~
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同问那个for呐。。。是不是D中的那个for就是错误的呢？
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While it costs about the same to run nuclear plants as other types of power plants, it is the fixed costs that stem from building nuclear plants that makes it more expensive for them to generate electricity.
AWhile it costs about the same to run nuclear plants as other types of power plants, it is the fixed costs that stem from building nuclear plants that makes it more expensive for them to generate electricity.&&BWhile the cost of running nuclear plants is about the same as for other types of power plants, the fixed costs that stem from building nuclear plants make the electricity they generate more expensive.&&CEven though it costs about the same to run nuclear plants as for other types of power plants, it is the fixed costs that stem from building nuclear plants that makes the electricity they generate more expensive.&&DIt costs about the same to run nuclear plants as for other types of power plants, whereas the electricity they generate is more expensive, stemming from the fixed costs of building nuclear plants.&&EThe cost of running nuclear plants is about the same as other types of power plants, but the electricity they generate is made more expensive because of the fixed costs stemming from building nuclear plants.&&
正确答案: B
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107. While it costs about the same to run nuclear plants as other types of power plants, it is the fixed costs that stem from building nuclear plants that makes it more expensive for them to generate electricity.(A) While it costs about the same to run nuclear plants as other types of power plants, it is the fixed costs that stem from building nuclear plants that makes it more expensive for them togenerate electricity.(B) While the cost of running nuclear plants is about the same as for other types of power plants, the fixed costs that stem from building nuclear plants make the electricity they generate more expensive.(C) Even though it costs about the same to run nuclear plants as for other types of power plants, it is the fixed costs that stem from building nuclear plants that makes the electricity they generate more expensive.(D) It costs about the same to run nuclear plants as for other types of power plants, whereas the electricity they generate is more expensive, stemmingfrom the fixed costs of building nuclear plants.(E) The cost of running nuclear plants is about the same as other types of power plants, but the electricity they generate is made more expensive because of the fixed costs stemming from building nuclear plants.几个问题：1. for的用法：文中在as后，有的地方没有for，有的地方什么也没有直接加名词。请问，在何时用for何时用to何时什么也不加就行？看几个选项之间的区别，就让我有点晕。2. 强调句：OG说除非有合理理由，不然不能用强调句。请问，什么情况下算是有使用强调句的compelling reason?3. wordy?:看A和C选项，结构上都形成了...that...that...的格式。我觉得挺awkward的，所以想请教，这样用，如果在没有别的错误的情况下，是否算错呢？谢谢！
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When you are dealing with ellipsis, it always helps to begin from the completely expanded version with all the words and then move your way to the abbreviated version by applying ellipsis along the way. I will do the same here:
Let's consider only the pertinent portion of the sentence.
1.& && &&&The cost of running nuclear plants is about the same as the cost of running other types of power plants.
No issues here with the comparison. Both sides of the comparison are grammatically and logically parallel.
Now what if I replace &the cost of running& with &that&. After it is obvious that we are comparing cost of running of the two categories of plants. But when I apply this ellipsis, I need something to connect &that& with &other types of power plants&.
2. (Without connection with that)
The cost of running nuclear plants is about the same as that other types of power plants. WRONG
2. (with correct connection)
The cost of running nuclear plants is about the same as that for other types of power plants.
So this is where the preposition &for& comes from.
Now we continue with our ellipsis. We can indeed even omit &that& from here since this omission will not lead to any ambiguity.
3.& && &&&The cost of running nuclear plants is about the same as for other types of power plants.
So this is how I get to the correct sentence containing &for&.
Now let's apply the same on the set of sentences:
1.& && &&&The incidence of the disease among men exceeds the incidence of the disease among women.
1 to 2 - The incidence of the disease among men exceeds the incidence of the disease among women.
2.& && &&&The incidence of the disease among men exceeds the incidence among women.
2 to 3 - The incidence of the disease among men exceeds the incidence among women.
3.& && &&&The incidence of the disease among men exceeds that among women.
So the key thing here is that as you replace or omit words, think about what connections you may need to get the correct sentence. The nature of the two sentences is different. In the Official sentence, the main component - cost of running - took direct object without the need of any preposition. So when we replaced this with &that& we needed a connection - i.e. a preposition. However, in the other example, the main component - incidence of the disease - itself needed a preposition to connect to the object and hence when we replaced it with &that& we did not need to get another preposition.
Thus when you cross-check your work in ellipsis, start from the complete sentence and then work your way to simplified version with replacement words and omitted words.
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1) 关于for，以B为例：不用for的话，原句变成cost of running nuclear plants is about the same as other types of power plants，比较对象变成cost of runnng nuclear和other types of power plants，就犯了和A一样的错误；当用for时，比较后半部分变为(the cost) for other types of power plants后半句the cost能省略的原因：You can elide the the subject and verb of a clause that's placed in parallel with another if they are an exact match for their counterparts in the other clause & 这边被省的cost在前半句出现，故可以省略。2) 我觉得强调句一般情况下是不需要的（具体情况我也不知道怎么表达比较好），另外一些题目选项中的it is...that...是“伪装”的强调句。3）在版版的千行中挖出来的~GMAT writers really go out of their way to avoid repeated-word constructions such as &X THAT Y THAT Z& or &X OF Y OF&. If you see something like &extent OF the shift OF light...&, you can be 99.9% sure that it's incorrect.希望没有误人子弟~
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我来试着回答一下：问题1，for和to什么时候用，主要看比较对象是什么。比如说A，比较的是to run nuclear plants这个动作和另一个动作,那后面应当补出to run,即to run nuclear plants和to run other types of power plans的两个动作的比较。it这里可做placeholder it来指代to run，还原A是：to run nuclear plants costs about the same as other types of power plants，这样的话是to run和other types的比较，比较对象不对等，C也有这个问题，不过C错用了for，应该用to run。 当然这里是个人的看法（有些instructor也这么看，但OG解释里并未提到这点）。 当然A还有别的问题而对于B，cost 要和cost比较，所以这里要补出for，即cost of doing sth. compared with cost for other things.比较对象对等了。DE都是如此问题2：强调句一般是强调某个原因或个体，但这句话的意思其实只是比较两种cost贵贱，并不是强调哪种cost本身，所以没必要用强调句。这里比较才是原句要表达的核心意思。问题3： that...that是比较awkward，而且比较容易引起歧义，因此做正确答案的不多。比如这里的AC：it is the fixed costs （that stem from building nuclear plants ）that makes it more expensive for them to generate electricity这里makes和costs主谓不一致。但我也的确有看到过that...that做正确答案的，这里我不误导你了。
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1, 我觉得A的省略应该是没有错的, as后面省略的to run. 即it costs about the same to run nuclear plants as (to run) other types of power plants... & & & OG解释中的 D 验证了这点. &The preposition 'for' is redundant in comparing the 2 objects of 'run'...& & & & 要比较的是2个to run, 但是D中加入 for 之后就变成了to run nuclear plants 与 (costs) for other types 的比较 & & & 参考自 &http://forum.chasedream.com/GMAT_SC/thread--1.html & &9L2, 关于千行中 of...x...of 结构的错误性, 出自OG13-Q139对应的题, 不是绝对性错误, 如OG13的正确例子中确实存在 of...x...of85, According to a recent poll, owingand living in a freestanding house on its own land is still a goal of a majority of young adults, as itwas of earlier generations. 3, 关于that...that的错误性, 应该不是绝对错误, 但在OG13中没有例子, 在PREP08中找到了2句.177. In her 26 years in the forestsof Gombe, Jane Goodall collected data that proved that chimpanzees exhibit thekind of curiosity by which new patterns of behavior and expression can bepassed on from one to another by imitation and practice.226. (GWD-3-Q1) Thefour-million-year-old fossilized skeleton known as Lucy is so small comparedwith many other skeletons presumed to be of the same species that some paleontologists have argued that Lucy represents a different lineage.
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谢谢～懂了～
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但是为什么是加for呢？如果说XX的成本，应该是of更好吧？如果要和前面the cost of running nuclear plants平行的话，as后面难道不是与the cost of other type更好么？
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花染水凉 发表于
但是为什么是加for呢？如果说XX的成本，应该是of更好吧？如果要和前面the cost of running nuclear plants ...
同问那！！！！！
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花染水凉 发表于
但是为什么是加for呢？如果说XX的成本，应该是of更好吧？如果要和前面the cost of running nuclear plants ...
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pwt930 发表于
http://forum.chasedream.com/thread--1.html看这个！
THX~~~这个问题都快被我抛到脑后去了~~XD
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花染水凉 发表于
THX~~~这个问题都快被我抛到脑后去了~~XD
the cost of running nuclear plants is about the same as (the cost) for other types of power plants.
the cost of running nuclear plants is about the same as (the cost) of running other types of power plants.
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