有格力空调/a和/b的区别KFRs一3.2j/a控制面板卖吗

来源：蜘蛛抓取(WebSpider) 时间：2018-07-18 06:55 标签： 格力2501a
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若有以下程序段，且0≤i＜4，0≤j＜3，则不能正确访问a数组元素的是（  ）。 int i,j,(*p)[3]; int a[][3]={1,2,3,4,5,6,7,8,9,10,11,12}; p = a;  A. *(*(a+i)+j)  B. p[i][j]  C. (*(p+i))[j]  D. p[i]+j
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若有定义 int a[3][4],*p; 则对数组元素a[i][j](0<=i<3,0<=j<4)正确的引用是（ ）。A．p=a B．p=a, *(*(p+i)+j) C．p=a[0], *(p+i*4+j) D．*(*(a+i)+j)不知道选C还是D。答案貌似是DC
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设向量a={3,2,-1},b={1,-1,2}求（1）a&#8226;b(2)5a&#)a&#8226;i;a&#8226;j;a&#8226;k(4)a×b(5)2a×7b(6)7b×2a(7)a×(-b) ps；我老师叫我改错,但是我再算还是原来的答案的一模一样,郁闷,
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a·b=3×1+2×（-1）+（-1）×2=-15a·3b=15×3+10×（-3）+（-5）×6=-15
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