可应用于自动检测、调节和程控系统,测量精度不受被测介质的种类影响的流量计是()。 A

题型:单项选择题

问题:

可应用于自动检测、调节和程控系统,测量精度不受被测介质的种类影响的流量计是()。

A.流体振动流量计

B.涡轮流量计

C.超声流量计

D.电磁流量计

考点:造价工程师建设工程技术与计量(安装)造价工程师建设工程技术与计量模拟试题六
题型:单项选择题

阅读理解

     Vince is an officer in the navy(海军军官). He is thirty-five years old. He lives on the sea(海洋)

most of the time.

    Last week, Vince went to a city for vacation. One evening, after he had supper, he decided to go to

a movie. He got on a bus and stood by the door.  More than ten minutes later, a drunk(醉汉) got on the

bus. "Hey! Does the bus go to the zoo?" he asked Vince.

    Vince said nothing and was going to the front. But the drunk caught hold of(抓住) him and went on

asking, "This bus will take me to the zoo, won't it?"

    Vince became angry and said, "Look carefully. I'm not a conductor, but an officer in the navy !"

     Hearing this, the drunk spoke loudly, "Stop the ship, then! I want a bus ! "

1. This story happened ______.

A. on the sea  

B. on a bus  

C. in a ship  

D. on a train

2. Vince took the bus to ______.

A. go shopping            

B. visit the zoo

C. go to a movie            

D. visit his friends

3. The underlined word "conductor" means "    ___    " in the passage.

A. 售票员  

B. 军官  

C. 列车长  

D. 司机

4. At last, the drunk thought he was ______.

A. on a train  

B. in a zoo  

C. in a ship  

D. on a bus

5. We can learn from the passage that ______.         

A. Vince was a drunk

B. the drunk took the wrong bus

C. Vince didn't like taking the bus

D.Vince came to the city for vacation

题型:单项选择题

患儿男,4岁,因“发热、呼吸困难,突然昏倒、面色青紫”就诊。胸部X线片:心影增大,两肺纹理稍粗。

应立刻进行的治疗是()(提示 连接心电监护后,显示为室性心动过速。)

A.描记心电图确认是否存在心律失常

B.静脉注射肾上腺素

C.静脉注射胺碘酮

D.静脉注射普鲁卡因

E.立刻除颤

F.立刻电复律

题型:单项选择题

设有关系R(A,B,C)和S(C,D)。与SQL语句SELECT A,B,D FROM R, S WHERE R.C=S.C等价的关系代数表达式是( )。

A.OC=SCA,B,D(R×)

B.ЛA,B,DC=SC(R×)

C.σC=SC((ЛA,B×(ЛD)

D.σC=SCDA,B×)

题型:单项选择题

在下图中用线代表绳子,将滑轮连成省力的滑轮组,要求人用力往下拉绳使重物升起。

题型:单项选择题

线路压变退出运行或二次失压时,且线路侧有电源的,线路重合闸可不停用。

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