【单选题】【消耗次数：1】
Many a customer____ about the poor quality of the washing machine.
①
complains
②
complain
③
are complaining
④
have complained
参考答案：
复制
纠错
相关题目
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Our customers are complaining of the ______ quality of our products.
①
gracious
②
wonderful
③
superior
④
inferior
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Many people complain of the rapid _____ of modern life.
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rate
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speed
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pace
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growth
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Ever since he arrived, he has been complaining constantly about the weather.
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正确
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错误
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①
much
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some
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any
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many
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—How many poor counties will there be in our province by 2010?—There will be only a few, if _______.
①
much
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some
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any
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many
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She had made many ( ) into the quality of the computer before buying one.
①
inquiry
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search
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research
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The travellers have suffered many hardships and ____________ many difficulties.
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undergo
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We can certainly deliver high-quality education to many students at much ________ cost.
①
low
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lowest
③
lower
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lowed
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6. 毛果芸香碱缩瞳是：
①
激动瞳孔扩大肌的α受体，使其收缩
②
激动瞳孔括约肌的M受体，使其收缩
③
阻断瞳孔扩大肌的α受体，使其收缩
④
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⑤
阻断瞳孔括约肌的M受体，使其松弛
【单选题】
2. 某碱性药物的pKa=9.8，如果增高尿液的pH，则此药在尿液中：
①
解离度增高，重吸收减少，排泄加快
②
解离度增高，重吸收增多，排泄减慢
③
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④
解离度降低，重吸收增多，排泄减慢
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阻断脑内胆碱受体
②
阻断中脑边缘系统和中脑皮层通路的多巴胺受体
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④
激动脑内阿片受体
⑤
激动网状结构的α受体
【单选题】
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多巴脱羧酶抑制剂
②
多巴脱羧酶激动剂
③
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④
多巴异构酶激动剂
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多巴氧化酶抑制剂