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【单选题】
删除数组arr=['a','b','c']中最后一个元素的方式错误的是()。A.
delete arr[2]
B.
arr.pop()
C.
arr.length=2
D.
arr.splice(0,2)
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【单选题】若有int a,b; int *pointer_1,*pointer_2; float *pointer_3; 下面赋值正确的是( )
A.
pointer_3＝2000;
B.
*pointer_1=&a;
C.
pointer_1＝&a;
D.
pointer_3=&a;
【单选题】若有如下程序： sub(int a，int b，int *z) {*z=a+b; return;} main() {int a＝1，b=2，c＝3，d，e; sub(a，b，&D) ； sub(c，d，&e)； printf('%d'，e); } 则程序运行后的输出结果是
A.
3
B.
4
C.
5
D.
6
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【简答题】1 若有int a = 2, int b = 3 , 则 a++ * b--+ --a的值是 。
【简答题】Martin is six years old. He is a student of Grade One. His home is not far from the school, so he goes to school and comes home on foot. He usually goes home from school at a quarter past five, but to...
【简答题】A. goes B. all c. with D. or E. only F. watches G. any H. at I. in J. please. Sophie: What does your sister usually do in the morning? Christine: She usually ____ to school in the morning. Sop...
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