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【单选题】
关于边际报酬递减规律,下列说法正确的是A.
随着一种可变要素的连续追加，其带来的总产量是始终递减的
B.
随着一种可变要素的连续追加，其带来的边际产量是始终递减的
C.
随着一种可变要素的连续追加，其带来的边际收益先增加，后减小
D.
随着一种可变要素的连续追加，其带来的边际产量先增加，后减小
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【单选题】听力原文：M: Will you please show me that notebook? W: Certainly. M: How much is it? W: Twenty-one yuan and fifty fen. M: Hm. It's certainly nice, but it's a bit more than I was thinking of paying. I don't...
A.
Ten yuan and ninety fen.
B.
Twenty yuan and ninety fen.
C.
Twenty-one yuan and fifty fen.
D.
Ten yuan and fifty fen.
【单选题】听力原文：W: Hello. May I help you? M: Could I speak to Jane Green please? W: I'm afraid she's in a staff meeting at the moment. M: Oh, I see. Do you know when she'll be available? W: The meeting should en...
A.
Within two or three days.
B.
Within 7 days.
C.
Within 30 days,
D.
Within 10 days.
【单选题】听力原文：W: Personnel Department. M: Hello. Could I speak to Mr. Smith, please? W: I'm afraid he's not at his desk now. M: Do you know when he'll be back? W: About three-thirty, I think. Can I take a mess...
A.
The Personnel Department.
B.
The Marketing Department.
C.
The Production Department.
D.
The R&D Department.
【单选题】听力原文：W: Hello. May I help you? M: Could I speak to Jane Green please? W: I'm afraid she's in a staff meeting at the moment. M: Oh, I see. Do you know when she'll be available? W: The meeting should en...
A.
She is on a business trip.
B.
She is at a meeting.
C.
She is abroad.
D.
She is in the office.
【单选题】听力原文：M: Could I have my bill, please? W: Certainly, sir. Here you are. M: Could you kindly explain this to me? What is item 7? W: Yes, sir. That's the service fee, 15 per cent. M. Oh, I see... I think...
A.
Checking his bill.
B.
Reading the menu.
C.
Waiting for the waitress to serve dishes.
D.
Waiting for the waitress to order dishes.
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