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【单选题】
氨基糖苷类抗生素的抗菌作用机制是:
A.
抑制细胞壁的合成
B.
影响细菌胞浆膜通透性
C.
抗叶酸代谢
D.
抑制细菌蛋白质的合成
E.
抑制核酸代谢
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参考答案:
举一反三
【单选题】Lily () the company.
A.
takes in
B.
takes over
C.
takes for
D.
takes out
【单选题】She______her mother. They look almost the same!
A.
takes over
B.
takes in
C.
takes after
D.
takes up
【简答题】A.takes place B.takes in C.takes over D.takes hold
【单选题】-How long does the bus ________?
A.
take, takes
B.
takes, take
C.
takes, takes
【单选题】Having retired (退休), he _____ the club for old men and plays chess every day there. [     ]
A.
takes part in
B.
joins in
C.
attends
D.
joins
【单选题】【C15】
A.
takes after
B.
takes on
C.
takes up
D.
takes for
【简答题】在对蜡染布的加工处理中,人们通常会将布匹交给染坊师傅进行石磙碾压。简要描述一下石磙碾压的过程?
【单选题】My flight to Tokyo _______ from Beijing International Airport.
A.
takes on
B.
takes off
C.
takes up
D.
takes away
【单选题】The plane _____ at three o'clock in the afternoon. [     ]
A.
takes off
B.
takes away
C.
takes out
D.
takes down
【简答题】蛋白质的二级结构主要包括哪些形式?
参考解析:
知识点:
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