【单选题】【消耗次数：1】
影响幼儿牙齿发育的药物是（ ）。
①
对乙酰氨基酚
②
磺胺药
③
地西泮
④
四环素
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四环素用于（ ）
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对四环素类抗菌药物过敏的患者慎用的药物是（ ）
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对四环素的抗菌作用机制是
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影响胞浆膜的通透性
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与核糖体30s亚基结合，抑制蛋白质的合成
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与核糖体50s亚基结合，抑制移位酶的活性
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与核糖体50s亚基结合，抑制肽酰基转移酶的活性
⑤
特异性抑制依赖于DNA的RNA多聚酶活性
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对四环素类药物的不良反应，描述错误的是（ ）
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使用四环素治疗无效的是（ ）
随机题目
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I’d like to take you to the coffee house on the corner.
①
Thank you. You shouldn’t’ do that
②
Thanks, I’d like to go with you
③
No, you can’t say so
④
No, no, You can’t do that
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He’s determined to finish the job __________ long it takes.
①
no matter
②
however
③
wherever
④
whatever
【单选题】
-- Could I speak to John Harris, please.
①
Oh, how are you
②
I’m John
③
I’m listening
④
Speaking
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Why don’t you travel to New York on vacation?
①
I don’t want to go
②
Excuse me, because I can’t
③
I want to, but I haven’t got enough money
④
Because I’m going to school today
【单选题】
Could you help me with my homework, please?
①
No, no way
②
No, I couldn’t
③
No, I can’t
④
Sorry I can’t. I have to go to a meeting right now
【单选题】
Determined to __________ as if everything were normal, he responded with a kind of indifference.
①
carry on
②
account for
③
bring up
④
get through
【单选题】
Mary, your dress is really beautiful. How is John?
①
Thank you very much
②
No, no, John is not bad
③
Thank you. He is fine
④
Don’t say that. It’s ugly. John is good
【单选题】
Excuse me, sir. Where is Dr. Brown’s office?
①
You can’t ask me
②
Pardon? I have no idea
③
Please don’t say so
④
Sorry I don’t know, but you can ask the man over there
【单选题】
And what we got to __________ is a disgrace.
①
come up with
②
catch up with
③
put up with
④
keep up with