问题 单项选择题

某水利工程基坑施工中采用了人工降低地下水位的措施,相应宜选用( )水泵。

A.小容量中高水头
B.小容量中低水头
C.大容量中高水头
D.大容量中低水头

答案

参考答案:A

解析: 通常,在初期排水时需选择大容量低水头水泵,在降低地下水位时,宜选用小容量中高水头水泵,而在需将集中基坑积水的汇水排出围堰外的泵站中.则需大容量中高水头的水泵。

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阅读理解


President Hu Jintao flew to the earthquake-hit region in Yushu,
Qinghai on April 18, 2010. At a field hospital on the grounds of
a sports stadium , Hu sat on the bed of Drolma, a middle school
student, and held her in his arm as she wept(哭泣) . "Rest assured
(放心的) , you will have a full recovery (康复). Be strong. You
will have a bright future, " he told her.




The 2010 World  Expo ,Shanghai  China Duration(举办时间) :
May  l  to October 31,  2010  Expected  visitors :70  million
Theme (主题) :  " Better  City , Better Life. " The theme represents
the common wish of the people all over the world for a better  living
  in  future  urban (城市的) environments .





The 19th FIFA World Cup(世界杯足球赛) Duration: June 11 to
July 12,2010
Host(主办)nation:South  Africa Number  of teams: Thirty-two
Number of matches: Sixty-four
It is the first time that the tournament(锦标赛)has been hosted by
a nation in the onfederation(联盟)of African Football.



1. President Hu Jintao flew to Yushu, Qinghai _____ ,2010.
A. on May I                  
B. on June 11 
C. on April 18                
D. on July 12
2. President  Hu  Jintao  comforted (安慰 ) ______ at  a field hospital.
A. a middle school student
B. a soldier
C. a farmer of Yushu
D. a doctor
3. The 2010 Worlcl Expo in Shanghai will end on______.
A. September 30
B. October 31
C. November 30
D. December 31
4. The theme of Expo 2010 is " ______".
A. Better City, Brjght future.
B. Better City , Good Environment.
C. Better City, Better Life.
D. Better City, Best Investment(投资) .
5. There will be ______ teams taking part in the 19th FIFA World Cup.
A. 10                        
B. 12
C. 13                        
D. 32
单项选择题 B型题