____sometimes keeps her awake at night ____ Tom is getting more and more quiet at home.
A. That; which
B. It; that
C. Whether; what
D. What; that
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Tom's mother kept telling him that he should work harder, but ____didn't help.
A. he
B. which
C. she
D. it
The machine is easy to ______. All you need to do is just push this button.
A. operate
B. be operated
C. being operated
D. operating
---Yes. And the large library _______ , too.
A. is built
B. is being built
C. has been built
D. is building
按企业使用报告的层级，可以将管理会计报告分为（）。
A. 战略管理报告、战略层报告、分部报告
B. 战略层报告、经营层报告、业务层报告
C. 战略层报告、经营层报告、整体层报告
D. 战略层报告、业务层报告、专项报告
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