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【单选题】
若电阻应变片的输入信号为正弦波,则以该应变片为工作臂的交流测量用桥的输出是( )A.
直流信号
B.
正弦波
C.
调幅波
D.
脉动波
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【简答题】两台变压器并联运行时,要求一次侧、二次侧电压 ,变比误差不允许超过± %。
【简答题】两台变压器并联运行时,要求一次侧、二次侧电压 ,变压比误差不允许超过 。
【简答题】In the United States, teaching is very important. If teachers do not teach well, students complain. If many students do not understand, people think that the teacher does not do a good job. The teache...
【单选题】Teachers complain most about students:
A.
not answering the question given
B.
not writing enough
C.
not referencing properly
【简答题】两台变压器并联运行时，要求一次侧、二次侧电压（），变压比误差不允许超过（）
【单选题】The teachers always complain about the children in class.
A.
to teach, tired
B.
teaching, tired
C.
teaching, tiring
D.
to teach, tiring
【单选题】Teachers complain that children______these tests without being able to write a decent essay, solve a multi-step math problem or construct a framework.
A.
look through
B.
carry through
C.
sail through
D.
put through
【简答题】Match the new words with their English explanations.
【单选题】Don’t complain ________ your teachers________ doing too much homework, because they want you to be the best.
A.
to; to
B.
to; about
C.
about; to
D.
about; about
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