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【简答题】
集成运算放大器具有__、__两个输入端。当信号由__对地输入时,输出信号和输入信号相位相反。
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反馈参考答案：
举一反三
【单选题】How can AI and internet help in interpretation?
A.
vocabulary building
B.
case study
C.
material preparation
D.
All of the three.
【多选题】How do you make your interpretation interesting?
A.
Use stories and legends
B.
Use more questions to make them think and increase the interaction.
C.
Ignore your tourists.
D.
Games ， jokes and slang are the best regulators during the trip.
【简答题】金圣叹认为对武松的哪样东西的描写是“草蛇灰线法”()。
【单选题】He got lost in the forest because he didn't _____. [ ]
A.
keep to the path
B.
lead the way
C.
hurt himself
D.
worry about
【简答题】线性定常系统的传递函数定义为,在零初始条件下,系统的( )量的拉氏变换与( )量的拉氏变换之比。
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