单项选择题

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单项选择题
If your guest is a heavy sleeper and the wake-up call sometime does not work, how could you wake him up? A.
You had better knock at my door. B.
You had better call his friend. C.
You had better call his celphone. D.
You had better call him twice.
单项选择题
以下对二维数组的定义中正确的是( )。 A.
int a[4][]={1,2,3,4,5,6}; B.
int a[][3]; C.
int a[][3]= {1,2,3,4,5,6}; D.
int a[][]={{1,2,3},{4,5,6}};