题目内容

电路中理想电源一定对外电路发出功率,这种说法对吗?

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请写出理想电压源的特性。

I was surprised that Mon seemed to ____ Kate's new boyfriend.

Monetary policy hasn't been working because interest rates have been reduced to almost zero without ____ the economy.

As we ____, we heard somewhat the sound of approaching footsteps and voices, which jerked us quickly back to life.

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