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【单选题】
.发动机启动时,蓄电池可向起动机提供高达( )A的启动电流。A.
(A)100-200
B.
(B)100-300
C.
(C)200-300
D.
(D)200-600
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【简答题】It is considered no use _________ against the deadly disease. A． struggling B． struggle C． to struggle D． for struggle
【单选题】It is extremely important for an engineer to know to use a computer.
A.
It is
B.
extremely
C.
for
D.
to know to use a
【单选题】Which of the following statements does the author tend to agree with?
A.
The use of drugs for non-medicinal purposes is an acceptable part of a person's lifestyle.
B.
The spreading of pop music may cause the drug abuse to go beyond country,boundaries.
C.
No efforts have been made to prevent the spreading of drug abuse.
D.
The governments have no ability to act against the pro-drug messages of the youth culture.
【简答题】Concerns a few years ago that students would be forced to use stimulants in the fight for class rank and honors thus seem to be exaggerating, but the reality is equally disturbing: a lifestyle【M1】____...
【简答题】干扰素的生物活性包括（）、（）和（）。
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