单选题：How can people' s sleeping be improved according to the stud

题目内容：
How can people' s sleeping be improved according to the study? A．Control the brain temperature.
B．Put plastic caps on at the right time.
C．Wear caps made of proper materials.
D．Limit the cups of water taken in each day.
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答案解析：

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分类：公共英语二级  题型：单选题
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In the last paragraph, the author tries to be________.

In the last paragraph, the author tries to be________. A．polite B．friendly C．pra

分类：公共英语二级  题型：单选题
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第44题应填__________

第44题应填__________ A．followed B．sounded C．slowed down D．went on

分类：公共英语二级  题型：单选题
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第43题应填__________ A．passed B．entered C．visited D．noticed

分类：公共英语二级  题型：单选题
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I looked down at the floor and saw a piece of paper. someone

I looked down at the floor and saw a piece of paper. someone________a note under

分类：公共英语二级  题型：单选题
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