题目内容

-I am sorry you have to wait.-___________________________

A. No, but I’d like some water.
B. Don’t worry.
C. Would you like a cup of coffee?

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-Would you like milk and sugar?-___________________________

A. No, but I’d like some water.
B. Just milk, please.
C. Don’t worry.

-What about you, Mr. Rogers?-___________________________

A. No, but I’d like some water.
B. I am sorry you have to wait.
C. Please call me Paul.

-Could we sit by the window?-___________________________

A. I am afraid those seats are reserved.
B. Yes, our dinner is ready.
C. The windows are broken.

放大电路中放大的实质是什么?

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