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【单选题】
传感变送器是将流体流量的变化换成感应电势的变化,信号转换器是将微弱的感应电势放大并转换成4~20mA的标准信号输出。A.
5~25mA
B.
4~20mA
C.
5~20mA
D.
4~25mA
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反馈参考答案：
举一反三
【单选题】We need to spend more time researching these suggestions so that we can make a(n) _______ choice.
A.
informed
B.
talented
C.
apparent
D.
known
【简答题】2)摇 曳( )
【简答题】简述过分集权的弊端。
【单选题】How will the library handle cases when a student cant receive a recall notice?
A.
Make a call to the student.
B.
Give the student a fine.
C.
Send the student a mail.
D.
Inform. the student's teacher.
【单选题】We should make mental preparation for failure, because there is only a(n) ______ number of possibilities of success.
A.
infinite
B.
finite
C.
innumerable
D.
numerous
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