Jimmy was sad. Everyone was trying to ___爱下问搜题

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问题选择题

Jimmy was sad. Everyone was trying to _____. [ ]

A. cheer Jimmy up

B. cheer him up

C. cheer up Jimmy

D. cheer up him

答案

答案：B

单项选择题

物体上的某点同时受到几个力的作用，当这些力的（）时，物体处于平衡状态。

A、大小相等

B、方向相同

C、合力为零

单项选择题

主风机出口二氧化硫控制指标为（）

A、7～9.5%

B、7.5～9.5%

C、7.5～9.5%

D、8～10%