汽机关闭一、二级旁路后,为什么要开启再热器冷段疏水和向空排汽?

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问题:

汽机关闭一、二级旁路后,为什么要开启再热器冷段疏水和向空排汽?

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要使关于x的方程
x+1
x+2
-
x
x-1
=
a
x2+x-2
的解是正数,a应满足的条件是(  )
A.a>-1B.a<-1C.a>-1且a≠3D.a<-1且a≠-3
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Today, we’ll be discussing EQ: emotional intelligence quotient. Your emotional intelligence quotient seems to indicate how well you (1) your own emotions, and bow well you (2) to others.
EQ is not exactly a new idea, but the (3) itself is a new one. People have realized the way you control your feelings is just as important as your (4) — maybe even more important.
The focus of today’s session is: can you learn EQ Some (5) school teachers think that some kids have (6) EQ’s than others. Even at five or six years old, some of the kids tend to be much more (7) and (8) than others. Another example is that kids deal with (9) in different ways. One may get frustrated with a (10) problem, but another child, with a higher EQ, might be able to handle the situation better. She might try (11) ways to approach the problem, or ask for (12) .
Can you (13) to have a higher EQ People seem to have different views on this question. Most of the people believe that the answer to this question is (14) . For example, kids can be (15) to have patience and not to give up when things go wrong. They learn to respond well to their (16) But others don’t agree. They find that some people never learn to (17) their EQ. The problem is that people with a low EQ have a (18) time seeing how their behavior affects other people. They see no reason to (19) They’ll probably never adjust their (20) .

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在Windows网络管理命令中,()命令用于显示客户端的DNS缓存,包括从LocalHosts文件预装载的记录,以及最近获得的资源记录。

A.ipconfig/all

B.ipconfig/registerdns

C.ipconfig/flushdns

D.ipconfig/displaydns

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下列哪项不属于维生素缺乏的原因()

A.摄入不足,如偏食,膳食调配不合理等

B.由于消化系统疾病而造成维生素吸收困难

C.食物的贮存及烹调方法不当,使维生素大量破坏与丢失

D.生长期儿童、孕妇、重体力劳动者等对维生素的需要量增加,而未及时补充维生素

E.由于水分丢失过多

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人体实验()。

A.只要医学研究需要就可进行

B.只要经过大量、可靠的动物实验后就可进行

C.只要课题组论证充分就可进行

D.研究者应将有关信息向伦理委员会提供以供审查,如果来不及报告,可以补审

E.课题组必须上报完整、严谨的报告,经专家组向上级主管部门按规定程序审批后方可进行

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