单项选择题
A.0 B.1 C.2 D.3
A.3 B.6 C.10 D.20
A.intx[5]={1,2,3,4,5,6}; B.intn=8;intscore[n]; C.inta[8];a[8]=100; D.intx[]={1,2,3,4,5,6};
A.a[3] B.a[2] C.a[0] D.a[1]
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