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【简答题】
Unit 3 练习册 page78 翻译练习 Translate the following sentences into Chineses. 1. Speak of the devil! 2. You believe in yourself and you were born to lead and organize others. 3. You’re a perfectionist and you always want to be the best, which means you can give yourself a hard time if you don’t succeed. 4. You love meeting new people and you’ve got loads of friend. 5. You’re not very good at dealing with lots of people at once, so you prefer hanging out with one person.
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【单选题】对于电流放大，希望放大电路的输入电阻________，对于电压放大，希望放大电路的输入电阻________。
A.
越大越好，越大越好
B.
越小越好，越小越好
C.
越大越好，越小越好
D.
越小越好，越大越好
【简答题】车圆柱面和车螺纹时，各需要几个独立运动？
【单选题】在放大电压信号时,通常希望放大电路的输入电阻和输出电阻分别为( )。
A.
输入电阻小,输出电阻大
B.
输入电阻小,输出电阻小
C.
输入电阻大,输出电阻小
D.
输入电阻大,输出电阻大