题目内容

当项目的净现值大于()时,说明该项目除了能达到基准收益率外,尚能多得到一些超额收益。

A. 0
B. 1
C. -1
D. 2

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酮替芬作用机制是

A. 激动β受体
B. 激动β受体
C. 阻断腺苷受体
D. 阻断H受体
E. 阻断M受体

沙丁胺醇作用机制是

A. 激动β受体
B. 激动β受体
C. 阻断腺苷受体
D. 阻断H受体
E. 阻断M受体

骨肉瘤血清增高的是

听力原文：M: Doctor, I feel sick. I have a bad stomachache, and my head troubles me a lot.
W: Well, let me have a check. Open your mouth, please. And say "Ah".
M: Ah! Is that serious, doctor？
W: Not really. Did you have your supper this evening？
M: No, I only had some bananas.
W: And the bananas were not quite ripe, right？
M: Well, yes, they were a bit green.
W: That explains it.
M: I wish I had not eaten them.
W: Take this medicine twice a day and I' m sure you' 11 be fine.
Did the man have a bad headache？

A. Yes, he did.
B. No, he didn't.
C. We are not sure.