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【单选题】
交流接触器常用于远距离接通和分断()的电路。
A.
380V、630A
B.
1140V、630A
C.
1140V、1000A
D.
1500V、1000A
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A.
Churchill
B.
Stalin
C.
Hitler
D.
Chiang Kai-shek
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A.
Walt Whitman
B.
William Faulkner
C.
Ralph W. Emerson
D.
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E.
I Shot An Arrow
F.
Self-Reliance
【单选题】The tremendous insight of Einstein was that the passage of time does not appear the same while standing still as it does to a person traveling at a substantial portion of the speed of light.
A.
while standing still as it does to a person traveling
B.
to a person standing still as to a person traveling
C.
to a person who is standing still as a person who is traveling
D.
while standing still as to traveling
E.
to a person standing still as to a person who travels
【多选题】直流电动机的运行特性,指端电压、励磁电流为常数时, ( ) 之间关系。
A.
转速n
B.
转矩M
C.
电流
D.
励磁电压
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A.
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B.
余额包销
C.
全额包销
D.
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A.
错置了爱情的地位
B.
误把友情当爱情
C.
只重过程不重结果
D.
功利化地对待爱情
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【单选题】16以下( )发行方式,承销商要承担全部发行失败的风险。
A.
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B.
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C.
全额包销
D.
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