题目内容

网络计划技术可对工程的时间进度与资源利用实施优化。

A. 对
B. 错

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#include void main() { int a; cout<<"请输入一个数"; cin>>a; switch(a) { case 0:cout<<"a是零"；case 1:cout<<"a是非零"；}

A. a是零 a为非零数
B. a为非零数
C. a是零
D. 0

_______________I enjoy my current job, i am planning to move to another company.

A. If
B. Unless
C. Although
D. Because

A lot of growing companies only focus__________one of factor, the price, when they are looking for their suppliers.

A. with
B. on
C. in
D. for

There's a growing body of evidence______________helping others is a key ingredient for life satisfaction.

A. which
B. that
C. who
D. whom