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【单选题】
20CrMnTi钢是合金( )钢.A.
弹簧
B.
工具
C.
渗碳
D.
调质
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举一反三
【单选题】Which of the following could be drawn from the passage?
A.
Contaminants have nothing to do with a critical loss of genetic variability in populations of living organisms.
B.
Contaminants can affect human beings,
C.
Before 1960, some experiments about contaminants' effect on genetic variability in populations of living organisms had been made.
D.
Hebert comes from Wayne State University.
【单选题】听力原文：M: Do you know Bill was accepted into medical school? W: Yes, nothing could surprise me more. Q: What does the woman imply? (16)
A.
She is never surprised.
B.
She is surprised by the news.
C.
She is less surprised than the man.
D.
Nothing is surprising.
【单选题】以下叙述不正确的是
A.
快室率(HR>120)房颤对血动力学影响大，麻醉中应尽量避免
B.
原有的房颤患者术中出现快室率首选电复律
C.
主动脉瓣狭窄的患者出现心绞痛时硝酸甘油可能无效
D.
保持窦性心律对主动脉瓣狭窄患者非常重要
E.
适当应用扩血管药物可增加瓣膜关闭不全患者的心排量
【单选题】企业管理者将其持有的现金投资于“现金等价物”项目，其目的在于（）。
A.
控制其他企业
B.
谋求高于利息流入的风险报酬
C.
利用暂时闲置的资金赚取超过持有现金收益
D.
企业长期规划
【单选题】听力原文：W: Just look at this newspaper! Nothing but murder, death and war! Do you still believe people are basically good? M: Of course I do! But newspapers hardly ever report stories about peace and gen...
A.
The man is generous with his good comments on people.
B.
The woman is unsure if there will be peace in the world.
C.
The woman is doubtful about newspaper stories.
D.
The man is quite optimistic about human nature.
【单选题】听力原文：W: What're you going to do tonight? M: Nothing particular. W: Maybe we can go to the baseball game. M: Why waste our money? The team's going to lose again. What does the man mean?
A.
They're already lost all the money.
B.
He doesn't know why the team always loses.
C.
Sports events are too expensive.
D.
This game won't be worth seeing.
【单选题】There was nothing they could do ______
A.
but to wait
B.
only to wait
C.
but wait
D.
unless they waited
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