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【单选题】
红霉素抗菌的机理是A.
破坏细胞壁
B.
溶解细胞膜
C.
干扰 DNA 复制
D.
干扰蛋白质合成
E.
降低代谢性酶类的活性
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反馈参考答案：
举一反三
【单选题】I'll try _____ the same mistake again. [ ]
A.
to not make
B.
not to make
C.
not making
D.
not make
【简答题】I'll try not to _____ too much of your time.
【单选题】—Have you got the information _____ you need to use for the report? —Not yet. But I'll try to find some on the Internet at once. [ ]
A.
which
B.
who
C.
what
D.
whose
【单选题】—I'll try to finish the task ahead of time. —I have to remind you that the work is not ________ easy ________ you imagine.
A.
so；as
B.
too；as
C.
as；like
D.
the same；as
【简答题】已知数列 的通项公式是 ,那么 108 是这个数列的第 项。
【单选题】As I felt very unhappy while doing an engineering internship at a top tech company, I think I'll try not to get stuck in corporate life.
A.
confused
B.
impressed
C.
miserable
D.
surprised
【单选题】-I think you can ___ money by yourself to buy a birthday present for your mother. - OK. I'll try. I'll not let a penny waste.
A.
spend
B.
save
C.
cost
D.
leave
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