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【判断题】
在计算突然扩大及突然缩小的局部阻力时,公式中的流速应该用大管中的流速。A.
正确
B.
错误
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举一反三
【单选题】M: Can I see a demonstration of this tape recorder? W:_________
A.
No, I am afraid you can't.
B.
Sure. It is very easy to operate.
C.
All right, sir. Here you go.
D.
That's all right. But we can't break it up.
【单选题】听力原文：M: Why don't you want to sing? Can you carry a tune? W: I'd love to, but I can't read music and I haven't got any training. Q: Why doesn't the woman want to sing? (7)
A.
She can't read music.
B.
She is afraid to sing.
C.
She is' unable to sing.
D.
Her voice is bad.
【单选题】— Please help yourself to some seafood. — _______
A.
No, I can’t.
B.
Sorry, I can’t help.
C.
Well, seafood don’t suit.
D.
Thanks, but I don’t like seafood.
【单选题】听力原文：M: This room is so crowded. I can hardly hear and I can't see a thing. W: I don't understand why they didn't have this show in a larger theatre. Q: What are they complaining about? (15)
A.
The crowd who is very noisy.
B.
The room that is too small for the audience.
C.
The show that is very difficult to understand.
D.
The light that is not bright enough.
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