【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
①
影响胞浆膜的通透性
②
与核糖体30s亚基结合，抑制蛋白质的合成
③
与核糖体50s亚基结合，抑制移位酶的活性
④
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（ ）
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ruined
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cracked
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broke
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split
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tells
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_____ in the past, at the moment it is a favorite choice for wedding gown.
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Unpopular has as white been
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White has been as unpopular
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Unpopular has been as white
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Unpopular as white has been
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I’d rather you _____by train because the weather forecast said there would be heavy snow tomorrow.
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went
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will go
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except
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besides
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in addition to
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except for
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agent
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It’s not fair that you come home after a bad day at work and _____your wife and children.
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take it out on
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take out it on
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take out on
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take on it with
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Mary will not be able to come to the birthday party as she is _____with a cold.
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laid out
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receiver
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echo
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extension
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