皮皮学，免费搜题
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搜题
【单选题】
氨基糖苷类抗生素的抗菌机制主要是A.
抑制细菌细胞壁的合成
B.
阻止细菌二氢叶酸合成
C.
抑制细菌蛋白质合成
D.
破坏DNA回旋酶
E.
与细菌核糖体5OS基不可逆结合
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】When were the first shoes sold in England?
A.
In mid 70s.
B.
In 1959.
C.
In 1988.
D.
In 1960.
【单选题】When did Luciano Benetton start his family clothing company?
A.
In the 1950s.
B.
In the 1960s.
C.
In the 1970s.
D.
In the 1980s.
【单选题】________ that the trade between the two countries reached its highest point. A) During the 1960 ’ s B) It was in the 1960 ’ s C) That it was in the 1960 ’ s D) It was the 1960 ’ s ( B )
A.
B.
C.
D.
D
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