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【单选题】
β-内酰胺类抗生素的作用靶点是A.
β-内酰胺酶
B.
粘肽转肽酶
C.
RNA聚合酶
D.
二氢叶酸还原酶
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知识点：
皮皮学刷刷变学霸
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【简答题】网络营销的八项基本职能有哪些?
【单选题】Which of the expressions do most people not like to hear to describe them?
A.
A big wig and a big wheel.
B.
A top banana and a kingpin.
C.
A big wheel and a top banana.
D.
A big wig and a kingpin.
【简答题】学习儿童康复学的意义和目的是什么?
【单选题】—Which do you think is better，tomatoes or potatoes —_______of them are delicious
A.
All
B.
Either
C.
Both
【单选题】–Which basketball player do you like best, Kobe, James or Jordan? -- _______ of them .Lin shuhao is my favorite.
A.
All
B.
None
C.
Either
D.
Neither
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