隔爆型三相异步电动机接线盒的防护等级为()A、IP23 B、IP44 C、IP54 D、I

题型:单项选择题

问题:

隔爆型三相异步电动机接线盒的防护等级为()

A、IP23

B、IP44

C、IP54

D、IP55

考点:电机装配工考试电机装配工考试题库
题型:单项选择题

阅读表达。

     One of the most popular things at Lingan University of Hong Kong is "Breakfast with the President" which

aims to break down student-faculty barriers (障碍). Every week, President Chen Kwan-yin invites students

to have breakfast with him. Because of the small number of 2,000 students, almost every student can get two

or three chances to do it during their three years' study. All they need to do is to add their names on the waiting

list. The breakfast starts at 8:00 a.m. You are warned not to be late because President Chen _____. It is a round

table breakfast of about l0 people. Everybody has a card with their name and major on. Chen asks students to

introduce themselves and then have breakfast, along with a casual talk about their life at the university. He is

kind to students and open to any complaints or suggestions.

     Many students come to the breakfast with problems to be settled. It is said that any reasonable requests and

suggestions raised during the breakfast will be taken care of. When my own "Breakfast with the President"

came, I was very nervous and excited. I got up early that morning. The president was dressed formally, but

what he said to relax us showed he was an easy-going person.

     Then he asked me about my exchange student life and what he could do to help me. He also discussed with

us many of his dreams for the university's future. He was a very special president, more like a friend. After the

breakfast, I greet him warmly whenever we meet, as every student on campus does.

1. What is the best title of the passage? (Please answer within 10 words.)

    _____________________________________________________________________________________

2. Try to find some words from the passage to describe the president. (Please give at least 3 words.) 

    _____________________________________________________________________________________

3. Suppose you will have breakfast with the president tomorrow morning, what will you prepare? (Please

    answer within 30 words.)

    _____________________________________________________________________________________

4. Please fill in the blank with proper words or phrases. (Please answer within 5 words.) 

    _____________________________________________________________________________________

5. Translate the underlined sentence into Chinese. 

    _____________________________________________________________________________________

题型:单项选择题

妊娠后尿液hCG达峰值的时间是()。

A.5~10d

B.10~20d

C.35~50d

D.60~70d

E.80~100d

题型:单项选择题

肺炎链球菌可引起

A.支气管肺炎
B.肺脓肿
C.大叶性肺炎(即典型肺炎)
D.支气管哮喘
E.胸膜炎

题型:单项选择题

某居民企业2010年实现会计利润总额200万元,在当年生产经营活动中发生了公益性捐赠支出25万元,购买了价值520万元的安全生产专用设备。假设2010年无其他纳税调整项目,2011年该企业应纳税所得额100万元,2011年该企业应缴纳企业所得税()万元。

A.23.5

B.23.25

C.24.56

D.31.40

题型:单项选择题

发电机的安全运行极限是如何确定的?

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