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【单选题】
引起细胞贫血症的 b 珠蛋白基因突变类型是A.
移码突变
B.
错义突变
C.
无义突变
D.
整码突变
E.
终止密码突变
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反馈参考答案：
举一反三
【单选题】What does the woman say about the Saturday workshop?
A.
It is too expensive.
B.
It is more convenient.
C.
She has attended it before.
D.
She has never heard of the speaker.
【单选题】What do we know about the cheese?A.It is on the shelf．B.It is too expensive．###
A.
What do we know about the cheese? A.It is on the shelf．
B.
It is too expensive．
C.
It is in short supply．
D.
It is no longer fresh．
【单选题】Medical ______ shows that men are more likely to have heart attacks than women.
A.
expectation
B.
evidence
C.
experience
D.
exchange
【单选题】What is the problem with Ann’s present apartment?
A.
It is too expensive.
B.
It is a bit far.
C.
It is too noisy.
D.
There is no par-king space.
【单选题】What does Phyllis say about Joes' gift?
A.
It is a good idea.
B.
It is too expensive.
C.
It is boring.
D.
It is inappropriate.
【单选题】Health officials have tried to raise _______ about the H1N1 flu among all people.
A.
conscience
B.
evidence
C.
evaluation
D.
awareness
【简答题】A．It is too expensive. B．It would take too long. C．Nothing worth seeing. D．He's been there before.
【单选题】According to Ann Clarke, the New Zealand Life Sciences Network______.
A.
should gather evidence to discredit Ingham's claims
B.
should require that the research by their biologists be regulated
C.
shouldn't demand that Ingham be disciplined for voicing her views
D.
shouldn't appease the opposition in such a quiet way
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