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【简答题】
电压 、 电流 是正数 ,表明参考方向与实际方向() ; 电压 、 电流 是 负 数 ,表明参考方向与实际方向()。
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【简答题】approximation
【简答题】Primitive equations,Boussinesq approximation和Anelastic approximation的区别主要在于对___项的处理
【简答题】阅读表达。 阅读下面短文并回答问题。(请注意问题后的词数要求). ［l］Before applying to colleges, many students wonder, what's the point of it all? This is an important question to ask yourself. College is a huge investment, no only ...
【单选题】It is very useful and almost exact first approximation, valid to the situation in which we apply ______it.
A.
for
B.
to
C.
on
D.
from
【简答题】A．portion B．correlation C．proportion D．approximation
【简答题】successive approximation
【简答题】阅读表达。阅读下面短文并回答问题（请注意问题后的字数要求）。 On October 19,1959, the first Special English program was broadcast (广播) on the Voice of America. It was an experiment. The goal was to communicate by radio in clear and...
【简答题】与Boussinesq approximation相比,滞弹性近似(Anelastic approximation)的区别主要在哪里?
【简答题】Which of the following is the closest approximation of ?
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