关小液氮节流阀,会使液空含氧量()A、增加 B、减小 C、不变 D、非上述答案

题型:单项选择题

问题:

关小液氮节流阀,会使液空含氧量()

A、增加

B、减小

C、不变

D、非上述答案

考点:制氧工考试制氧中级工制氧中级工题库
题型:单项选择题

James likes sports, so he is tall and strong in his middle school. Now his father and mother work in London So he begins to study in a middle school there. He’s a member of the school Rugby team. He likes the game very much and plays it on Saturday and Sunday.

His grandma lives in a small village and one day she comes to see him. It’s Saturday and she doesn’t see the boy at home. So she goes to look for him in the school. She sees thirty boys are stealing only one ball. The old woman tells Tom to finish playing and going home with her.

“But, Grandma, I ……”

“Don’t play with them, my dear!” says the old woman. “I’m going to buy a ball for you!”

A. he’s tall      B. he’s a student

C. he likes sports  D.he likes his school

小题1:James lives_________ now.

A.in a village

B.with his grandma

C.in London

D.with his students小题2:James___________ on Saturday and Sunday.

A.does housework

B.plays football

C.plays Rugby

D.has a rest小题3:________ , so the old woman doesn’t find him at home.

A.James goes shopping

B.James leaves London

C.James is at school

D.James is not at home小题4:The old woman doesn’t know how to play Rugby, so she________

A.watches the games for a long time

B.gives the team a new ball

C.tells the boy to go home with her

D.is angry

题型:单项选择题

面对生活中的是非善恶,我们首先要把握正确的判断标准。判断生活中是非善恶的标准有(   )

①道德标准 ②法律标准  ③以是否对个人有利为标准  ④以个人好恶为标准

A.①③

B.②③

C.①②

D.①③

题型:单项选择题

GB50174-2008《电子信息系统机房设计规范》规定:当无线电干扰频率为0.15~1000MHz时,主机房和辅助区内的无线电干扰场强不应大于()。

A.65dB;

B.126dB;

C.800dB。

题型:单项选择题

()不属于外存储器。

A.硬盘

B.磁带

C.ROM

D.光碟

题型:单项选择题

在工商谈判中最核心的谈判是( )。

A.价格磋商

B.技术条件

C.合同条款

D.支付方式

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