试题与答案

泡沫灭火机不能用于带电灭火。

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题型：判断题

题目：

泡沫灭火机不能用于带电灭火。

答案：

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下面是错误答案，用来干扰机器的。

参考答案：A解析：除A外其他都是非极性或弱极性成分，都能被石油醚溶解。所以答案为A。

考点：低压电工考试低压电工考试题库
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题型：阅读理解
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Travel Arrangements
Date:15 April 2011                 For :Wang Mei
May 4Leave Beijing
Air China Flight CA 111
Confirmed
Please check-in at least two
hours before leaving time		10:00 a.m.
May 5Arrive in Sydney
Hotel bus will take you to the
hotel		9:30 a.m.
May 5Holiday in Sydney
Confirmed
In:5 May 2011
Out:10 May 2011
Nights:5
May 10Own arrangement with host
family
May 14Leave Sydney
Qantas Airline Ltd Flight QF333		12:30 p.m.
May 14Arrive in Perth
The guide will collect you from
the airport for four days return
bus trip to Monkey Mia		15:30 p.m

May 18Leave Perth
Qantas Airline Ltd Flight QF44
Confirmed
May 18Raffles Hotel Singapore
In:18 May 2011
Out:19 May 2011
Night:l		11:00 a.m.
May 19Arrive in Beijing16:00 p.m．
1. How many days will Wang Mei's holiday last?
A. 14.                            
B. 16.
C. 19.                            
D. 20.
2. At what time does Wang Mei have to be at the airport for her flight from Beijing?   
A. 8:00 a. m.              
B. 9:30 a. m.
C. 10:00 a. m.                
D. 11:00 a. m.
3. When she arrives in Perth, Wang Mei will travel from the airport         .          
A. by taxi
B. in a car
C. on the travel-bus
D. with her host family
4. Where will Wang Mei be on May 16?
A. In a hotel in Perth. .
B. On her return to Sydney.
C. On a flight to Singapore.
D. On a trip to Monkey Mia.
5. In which country will Wang Mei stay before she returns to Beijing?
A. Perth.                    
B. Sydney.
C. Singapore.                
D. Monkey Mia.
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