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【单选题】
以下有关病例队列研究与病例对照研究的说法,哪一项是正确的?A.
两种研究中对照的选择都在病例发生之前
B.
两种研究中对照均与病例进行匹配
C.
两种研究中对照均可同时与几个病例组进行比较
D.
两种研究用于分子流行病学研究
E.
病例对照研究更省钱
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反馈参考答案：
举一反三
【单选题】As far as learning to use a word processor is concerned, the author of the passage mentions a number of drawbacks EXCEPT that______.
A.
it takes time
B.
it is costly
C.
the user may rely too much on the machine
D.
the user may lose weeks of work
【简答题】石膏能防火原因?
【单选题】__________ David could remember, he had never said an angry word to that customer.
A.
As far as
B.
As long as
C.
As well as
D.
As much as
【单选题】As far as learning to use a word processor is concerned, the author of the passage feels that Hammond ______.
A.
is understating the problem
B.
exaggerates one drawback
C.
is too skeptical about the advantages
D.
overestimates the danger of losing text
【单选题】____ I?know,?there?isn’t?such?a?word?in?English.
A.
As much as
B.
So far as
C.
As long as
D.
As soon as
【单选题】The word 'yet' in line 16 is closest in meaning to
A.
however
B.
since
C.
generally
D.
so far
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