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【简答题】
并联电容器的等效电容量总是 其中电容器的电容量。并联电容器越多,总的等效电容量 。
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【简答题】Now our city has ____ of more than two million. A.the population B. a large population C. populations D. population 22. Mother has bought her daughter a new __. A. clothes B. clothing C. dre...
【单选题】An elderly lady suffers a coronary occlusion and subsequently it is noted that there is a complete heart block (that is, the right and left bundles of the conduction system have been damaged. The arte...
A.
Acute marginal branch
B.
Circumflex branch
C.
Anterior interventricular (Left anterior descending)
D.
Obtuse marginal
E.
Posterior interventricular (posterior descending)
【单选题】The lady is too old to ____ a fall like that.
A.
come about
B.
come to
C.
come through
D.
come over
【单选题】Since Mr. Smith to London, he can tell us something about the city.
A.
has gone
B.
went
C.
will go
D.
has been
【单选题】A lady is too old to ______ a fall like that.
A.
come about
B.
come to
C.
come through
【单选题】He even________ to call the deal off if we didn't satisfy his demands. [ ]
A.
scolded
B.
threatened
C.
warned
D.
declared
【单选题】The environment of this city will be more seriously polluted unless ______ measures are taken to prevent factories from sending out poisonous gases and waste water.
A.
efficient
B.
useful
C.
helpful
D.
effective
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