单选题（） are used to limit the pressure in any particular portion and mainly control the pressure after the valve.A Relief valvesB Check valvesC Safety valvesD Reducing valve

题目

单选题

（） are used to limit the pressure in any particular portion and mainly control the pressure after the valve.

Relief valves

Check valves

Safety valves

Reducing valve

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相似问题和答案

第1题：

A quality assurance team should be(75)。

① associated with any particular development group

② depended upon any particular development group

③ responsible for reporting directly to management

④ In-depended upon any particular development group

A．①②

B．②③

C．③④

D．①②③④

正确答案：C
解析：本题含义可表述为：质量保证小组的工作性质如何。
①和开发小组密切联系。
②依靠开发小组。
③直接向管理者汇报工作。
④独立于开发小组。
从质量保证小组的性质看，③和④是比较符合题意的。所以应该选择C。

第2题：

because no textbooks are written for any particular class, it is _____ for teachers to adapt materials.

A、unnecessary

B、necessary

C、difficult

D、easy

参考答案：B

第3题：

● A quality assurance team should be（75）.

①associated with any particular development group

②depended upon any particular development group

③responsible for reporting directly to management

④in-depended upon any particular development group

（75）

A．①②

B．②③

C．③④

D．①②③④

正确答案：C

第4题：

The process during which liquid containing a reasonable amount of sensible heat at a particular pressure immediately changes into steam after admitted to a chamber at a lower pressure is called _____.

A.boiling off

B.flash evaporation

C.condensation

D.none of the above

正确答案：B

第5题：

Which two statements about subnet masks are true?()

A.If a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.

B.If a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.

C.If a bit is turned on (1), the corresponding bit in the IP address is used for the network prefix.

D.If a bit is turned off (0), the corresponding bit in the IP address is used for the network prefix.

参考答案：B, C

第6题：

听力原文：The holder of credit card can buy goods against the card at any shop that has joined the scheme without cash.

(9)

A．The credit card can be used at any shop without paying cash.

B．The credit card can he used at any appointed shop together with cash.

C．The credit card can be used at any appointed shop without paying cash.

D．The credit card can be used to withdraw any amount of cash.

正确答案：C
解析：单句意思为“此信用证的持有者可以在任何一家加盟的商店用此卡购物而无需用现金。”

第7题：

What are two functions that the parameter max－session performs? ()(Choose two.)

A. Defines the session limit for the domain.

B. Defines the session limit for the tunnel instance.

C. Used to control load balancing between multiple domains.

D. Used to control load balancing between multiple tunnels for a domain.

参考答案：B, D

第8题：

Which of the listed pressure control valves would be used to establish the maximum operating pressure of a hydraulic system?

A.Pressure-reducing valve

B.Unloading valve

C.Counterbalance valve

D.Pressure-relief valve

正确答案：D

第9题：

Do you have any particular conditions that you would like the company to take into consideration?

正确答案：

第10题：

________ is a device used to measure atmospheric pressure．

A.Barometer

B.Thermometer

C.Chronometer

D.Speedometer

正确答案：A

（） are used to limit the pressure in any particular portion

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