问题 单项选择题

用镇痛新的过程中,大量吸烟而使镇痛新的药效降低的原因是( )。

A.首过效应
B.酶促作用
C.相加作用
D.升高血糖
E.生成难溶性化合物

答案

参考答案:B

解析:[知识点] 药物与食物、烟、酒、茶的相互作用

完形填空
完形填空。
    Mr. Turner works in a middle school. As a good    1  , he is friendly to his students. And he is always
strict   2   himself. He often tells his students to do their best to    3   the persons    4   trouble.
    One Saturday morning, Mr. Turner went to see his friend who was ill in hospital. As something was
wrong   5   his car, he had to take a bus. After he got on the bus, he found a seat and sat down. But soon
   6   people got on the bus and some had to stand. He looked   7   and saw a woman behind. He stood up
and gave his seat to her. The woman said   8   and sat down. Her behaviour(举止)made Mr. Turner   9  .
    "It's necessary for her to be taught how   10  polite," he said to himself. Then he asked, "What did you
say, Madam?"
    "I didn't say anything," answered the woman.
    "I thought you said THANK YOU." When the woman heard this, her face turned red slowly.
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单项选择题