通信电源设备安装工程设计应做到()扩建和改建工程应充分考虑原有通信设备的特点,合理利

题型:多项选择题

问题:

通信电源设备安装工程设计应做到()扩建和改建工程应充分考虑原有通信设备的特点,合理利用原有建筑、设备和器材,积极采取革新措施。

A.切合实际

B.技术先进

C.经济合理

D.安全适用

E.满足长期需要

考点:通信设备安装工通信设备安装工题库
题型:多项选择题

心绞痛及昏厥常见于:()

A.二尖瓣狭窄

B.二尖瓣关闭不全

C.主动脉瓣狭窄

D.主动脉瓣关闭不全

E.三尖瓣狭窄

题型:多项选择题

B.阅读理解:(30分)                        

A

Now we can see a man and his wife at the breakfast table. They are not speaking to each other.

They haven’t spoken to each other at the breakfast table for years. The husband is reading his newspaper. We can’t see his face. The wife looks very worried as she gets a cup of tea ready for him. Today she is using a new kind of tea for the first time. The husband picks up his cup. He isn’t interested. He tastes his tea. Suddenly he puts down his newspaper. Something is different! Can it be the tea? He takes another taste. It’s wonderful. He smiles. He looks at his wife and says in surprise, “Doris, when did you cut your hair?” Doris is pleased. She answers, “Two months ago.” Doris asks, “Herbie, when did your hair begin to become white?” He answers, “A long time ago.” Doris says, “We have been together for many years, but we never cared about each other.” Now they aren’t worried any longer. Breakfast is different. Has a new kind of tea changed their lives?

36. This story happens______________________.

A. before breakfast                     B. after breakfast

C. at home                            D. in a teahouse

37. In the passage, we can see ________________________.

A. Doris is drinking tea                 B. Herbie likes the new kind of tea

C. Doris is reading a newspaper           D. Herbie is very young and good-looking

38. Herbie and Doris lived ______________ before this day.

A. a wonderful                        B. an unhappy

C. an enjoyable                        D. a friendly

39. Which of the following statements is true?

A. They are good friends.                B. They have just got married.

C. They like to talk about their hair.       D. They are no longer young.

40. From the passage, we think it may be ______________.

A. a radio programme                   B.  a short film

C. a computer game                     D.  a beautiful painting

题型:多项选择题

5岁,发热3天,咳嗽,有痰不易咳出,呼吸困难,口唇发绀。双肺散在湿啰音,白细胞总数及中性高,X线胸片:两下肺散在斑片阴影

最可能的诊断是

A.急性支气管炎

B.急性喉炎

C.支气管肺炎

D.毛细支气管炎

E.支气管哮喘

题型:多项选择题

“塔吊”是现在建筑工地上常见的起重设备.如图的“塔吊”,O是支点,AB是竖直支架,CD是平臂,OC段叫平衡臂,C端装有配重体,它重为5×104N;OD段叫吊臂,E处装有滑轮组,可在O、D两点间移动,滑轮组重力及摩擦忽略不计.已知:CO为10m,OD为50m,若“塔”身宽度和铁架、吊钩的重力不计,请计算并回答下列问题:

(1)当滑轮组在D点时,计算该“塔吊”能吊起重物的物重为多少?

(2)若想用此“塔吊”吊起质量为2t钢材,那么,为安全起吊,E最远可以移到离0点多远的地方?(g=10N/kg)

题型:多项选择题

1925年12月,俄共(布)十四大之后,苏联开始大规模工业化建设,其政策的主要特点是()

A、优先发展重工业,忽视农业和轻工业

B、采用行政手段保证高积累多投资,尤其是依靠农业积累资金C、高度的计划性

D、中央集权的管理体制

E、追求高速度,强调产值产量

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