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【简答题】
转速电流双闭环直流调速系统之所以具有起动的快速性,是因为在起动过程中 调节器输出提供最大电流给定,并由 调节器维持电流最大,从而使系统启动最快。
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举一反三
【单选题】What can we learn from the dialogue?
A.
Megan doesn't like the novel.
B.
Rob has read the novel.
C.
Megan has seen the movie.
D.
Rob wants to see the movie.
【简答题】图示桁架零杆个数为( )根。【图片】
【单选题】As we all know, the film Go Lala Go[《杜拉拉升职记》]is ________from a famous novel written by Li Ke.
A.
adopted
B.
adjusted
C.
adapted
D.
absorbed
【单选题】In reading this novel, we feel as if located in the _______ mythical or fairy world and derive boundless joy from it.
A.
ascendant
B.
equivocal.
C.
discreet.
D.
credulous.
E.
grotesque
【简答题】如图所示桁架，零杆个数为 。【图片】
【单选题】The prime suspect 新冠状病毒的爆发真是蝙蝠的错? As the novel coronavirus ( 冠状病毒) spreads throughout China and the rest of the world, an important question has yet to be answered: where did the virus come from? The ...
A.
Bats have been discovered to be its original cause.
B.
Pangolins are now considered the most likely source.
C.
It’s identified by comparing sources of various viruses.
D.
The virus was found to be genetically similar to those seen in bats.
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