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【简答题】
求下图所示电路的诺顿和戴维宁等效电路。若在该电路a,b处接一个负载电阻R,求R为何值时,可从电路获得最大功率?并求此最大功率。(出题人:无敌组)
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反馈参考答案：
举一反三
【简答题】在栈中存取数据的原则是:
【单选题】--- You didn’t come to school by bike today, did you? --- .It’s broken.
A.
Yes, I did
B.
No, I didn’t
C.
Yes, I didn’t
D.
No, I did
【单选题】—My bike is broken. —______. [ ]
A.
It doesn't matter
B.
That's good
C.
Excuse me.
D.
I am sorry to hear that
【简答题】热分析法是在程序温度下测量物质的物理性质与温度关系的方法,通常用热分析仪测定。常用方法有 , , 。
【单选题】Hadn't my bike broken down, I ______ earlier.
A.
should have come
B.
would come
C.
could come
D.
had come
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