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【判断题】
A和T之间发生替换的碱基突变为颠换A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】I don't know how I can thank you enough.
【单选题】I don't know how to swim , .
A.
and my sister doesn ’ t neither
B.
B . nor my sister can
C.
nor does my sister
D.
and my sister does either
【单选题】How did the accident happen?
A.
I can't go there.
B.
I didn't see it.
C.
I don't know how to.
【单选题】I don't know how to swim, .
A.
and my sister doesn’t neither
B.
nor my sister can
C.
nor does my sister
D.
and my sister does either
【单选题】I don't know how I became a writer, but I think it was because of a certain force in me that had to write and that finally burst through and found a channel. My people were of the working class of peo...
A.
made an important contribution
B.
insisted that he choose writing as a career
C.
opposed his becoming a writer
D.
insisted that he read Hamlet in order to learn how to be a writer
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