调节阀按流量特性可分为哪几种?

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问题:

调节阀按流量特性可分为哪几种?

考点:仪表工考试仪表维修工高级仪表维修工高级题库
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---- You shouldn’t have played such a joke on him.

---- Sorry, I _____ that he would get so angry.

A don’t expect    B hasn’t expected    C didn’t expect   D hadn’t expected

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补全对话。(有两项多余)(5分)
A.Did you use to play the piano?    
B.You’ve changed a lot.         
C.Don’t you remember me?  
D.I am on the swim team.      
E.That is right.
F.I wasn’t very outgoing.
G.You look different.
Girl: Hey, Steve! Over here! ____1____
Boy: Oh, wow! You are Paula, aren’t you?
Girl: ____2___
Boy: But you used to be really quiet, didn’t you?
Girl: Yeah. ____3___
Boy: No, you weren’t. But you were always friendly.
Wait a minute! ___4___
Girl: Yes, I did. But now I am more interested in sports. I play soccer      
and ___5___
Boy: Wow! People sure change.
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肾周筋膜及肾周间隙结构的异常改变对下列哪些疾病的诊断有帮助()

A.肾良、恶性肿瘤鉴别诊断

B.急性胰腺炎

C.肾脏恶性肿瘤的分期

D.肾脓肿

E.肾周血肿

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酒的发酵只能使酒精含量达到()左右。

A.12%(V/V)

B.15%(V/V)

C.20%(V/V)

D.50%(V/V)

题型:问答题 简答题

当前,西方发达国家商业银行最主要的组织形式是()。

A.私人银行

B.合伙组织的银行

C.国家商业银行

D.股份制银行

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