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【单选题】
对鹅膏苷碱最敏感的酶是( )A.
RNA聚合酶Ⅰ
B.
RNA聚合酶Ⅱ
C.
RNA聚合酶Ⅲ
D.
DNA聚合酶Ⅰ
E.
DNA聚合酶Ⅱ
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反馈参考答案：
举一反三
【简答题】轴测图可分为 和 两种。
【简答题】属于我国原产和特产,有“菜中之王”美誉的叶类蔬菜是( )。
【简答题】小麦条锈病的发生和流行主要取决于( )、( )以及( )。
【简答题】The author’s purpose in writing this passage is ________. A) to describe the difficulties in solving humanity’s current problems B) to present the different views on humanity’s current problems C) to ...
【单选题】We went through a period communications were very difficu1t in the rura1 areas. （ ）
A.
which
B.
whose
C.
in which
D.
with which
【单选题】As well as being intangible, what is the problem with emotions ?
A.
They are difficult.
B.
They are compounded.
C.
They are difficult to qualify.
D.
They do not operate in isolation.
【单选题】The two rings are so alike thatit is difficult to tell one theother ．
A.
． very ； to
B.
． much ； to
C.
． much ； from
D.
． very ； from
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