试题与答案

室内压急剧下降是()。 A.减慢射血期 B.等容收缩期 C.快速充盈期 D.等容舒张

题型:单项选择题 B1型题

题目:

室内压急剧下降是()。

A.减慢射血期

B.等容收缩期

C.快速充盈期

D.等容舒张期

E.快速射血期

答案:

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参考答案:A

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阅读理解。

     Many animals recognize their food because they see it. So do humans. When you see an apple or a piece

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A. depend on one sense in choosing food

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3. We can learn from the last paragraph that _____.

A. food is chosen for a good reason

B. French and British food is good

C. some people have few choices of food

D. some people care little about healthy diet

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