已知物体受3个力的作用，下列各组力中不能使物体处于平衡状态的

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问题选择题

已知物体受3个力的作用，下列各组力中不能使物体处于平衡状态的是[ ]

A．F₁=3N，F₂=6N，F₃=10N

B．F₁=3N，F₂=6N，F₃=8N

C．F₁=5N，F₂=4N，F₃=9N

D．F₁=5N，F₂=3N，F₃=7N

答案

答案：A

句型转换

句型转换。

1. It's sunny and windy today. (对划线部分提问)

_____ _____ the weather today?

2. All the children are having a good time in the park. (改为同义句)

All the children are _____ _____ in the park.

3. My father is reading a newspaper in the room. (对划线部分提问)

_____ your father _____ in the room?

4. How is the weather today? (改为同义句)

_____ the weather _____ today?

5. The boy often plays computer games. (用now改写)

The boy _____ _____ computer games now.

多项选择题

资信评级机构负责证券评级业务的高级管理人员，应当具备的条件有( )。

A．取得证券从业资格

B．熟悉资信评级业务有关的专业知识、法律知识

C．无《公司法》、《证券法》规定的禁止任职情形

D．未被金融监管机构采取市场禁入措施，或者禁入期已满