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问题 多选题

如图所示，悬挂于小车里的小球偏离竖直方向θ角，则小车可能的运动情况是（　　）

A．向右加速运动

B．向右减速运动

C．向左加速运动

D．向左减速运动

答案

由图易知小球即小车的加速度向右，所以小车可能是向右加速，也可能是向左减速．

故选AD．

阅读理解

读短文，判断正(√)误(×)。

      On Sunday Ben doesn't go to school. He gets up at eight o'clock. Then he goes to the library at nine fifteen.

He reads English stories there. Ben loves reading. He plays football in the morning with his friends, too. They

play at ten thirty. He visits his grandma with his parents at two o'clock. His grandma lives on a farm. They have

dinner together. Then Ben and his parents go home at eight o'clock.

( ) 1. Ben goes to school at eight on Sunday.

( ) 2. He goes to the library at nine fifteen.

( ) 3. Ben plays with his friends at ten thirty.

( ) 4. His parents visit his grandpa at two fifteen.

( ) 5. Ben eats dinner with his friends.

( ) 6. Ben goes to bed at eight o'clock.
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单项选择题 B型题

行腹膜透析患者蛋白质摄入量是（）

A.0.5g／（kg·D.，并适量补充必需氨基酸

B.0.5～0.8g／（kg·D.，其中60%以上为优质蛋白

C.0.8～1.0g／（kg·D.，其中60%以上为优质蛋白

D.1.1～1.2g／（kg·D.，其中50%以上为优质蛋白

E.1.2～1.5g／（kg·D.，其中50%以上为优质蛋白
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