ACS300-MAIN主模块有（）个连接接口。A、1 B、2 C、3 D、4

读短文，选择正确的答案。

      It's Sunday today. It's fine. There are a lot of people in the park. Some girls are flying kites. A young man

is playing balls. Long Long is playing football. I am watching TV in the room. Mei Mei is doing her homework

at home.

1. Is it fine?

A. Yes, it isn't.

B. No, it is.

C. Yes, it is.

2. Who is playing balls? 

A. Long Long.

B. I.

C. A young man.

3. Who's in the park?

A. A lot of people.

B. Some trees.

C. Some boats.

4. What do you do on Sunday?

A. Watch TV.

B. Play computer games.

C. Do homework.

5. Who is flying kites?

A. Long Long.

B. Mei Mei.

C. Some girls.

为什么在DNA中通常只发现A-T和C-G碱基配对？

缺货成本指由于存货供应中断而造成的损失，它包括（）。

A.商誉（信誉）损失

B.延期交货的损失

C.紧急采购发生的超额费用

D.停工待料损失

砌体工程现场检测时，砌体用块材（砖）主要进行（）的检测。

A.抗拉

B.抗弯

C.抗压

请补充main函数，该函数的功能是：计算每个学生成绩的平均分，并把结果保存在数组bb中。 例如，当scorer[N][M]={{83.5,82,86,65,67)，{80,91.5,84， 99,95){90.5,95,86,95,97}}时，三个学生的平均分为76.7 89.9 92.7。 注意：部分源程序给出如下。 请勿改动主函数main和其他函数中的任何内容，仅在 main函数的横线上填入所编写的若千表达式或语句。 试题程序： #include＜stdio.h＞ #define N 3 #define M 5 main() { int i,j; static float score[N][M]={{83.5,82,86,65,67},{80,91.5,84,99,95},{90.5,95,86,95,97}}; float bb[N]; clrscr(); for(i=0;i＜N;i++)【1】; for(i=0;i＜N;i++) { for (j=0; j＜M; j++) 【2】;bb [i]/=M; } for (i=0; i＜N; i++) print f (" knstudent %d\t average =%5.1f",i+l,bb[i]); }