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【判断题】
是我国的导弹之父。()A.
正确
B.
错误
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【简答题】含有理想运算放大器的电阻电路如图所示，试求u O 与u S 的关系式。
【单选题】Directions: There are three passages in this part． Each passage is followed by some questions or unfinished statements． For each of them there are four choices marked A, B, C and D． You should decide ...
A.
critical
B.
questioning
C.
approving
D.
objective
【简答题】在AutoCAD中,系统默认的坐标系为 , 用户也可以根据需要定义 。
【简答题】运算电路如下图所示，已知三个输入量u 1 ，u 2 和u 3 与输出量u o 的关系满足u o =au 1 +bu 2 -4.2u 3 。试求系数a，b和电阻R 4 的值。
【单选题】Directions: There are three passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You should decide ...
B.
Most people can get more work done by working longer hours.
C.
Most Americans work 80 hours a week, and some work even longer.
D.
People can make more money by working longer hours.
【单选题】The author in the passage uses the following devices in his writing EXCEPT ______.
A.
questions
B.
narrative
C.
analogy
D.
comment
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