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问题 单项选择题

一些难溶于水的化合物分子中引入磺酸基后其水溶性（）。

A、不变

B、增强

C、降低

D、都不对

答案

参考答案：B

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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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问答题

　　作者说托尔斯泰墓“剧烈震撼每一个人内心深藏的感情”，从《世间最美的坟墓》文中找出两个具体描写参观者这种崇敬之情的句子，并谈一谈你的体会。

答：_______________________________________________。
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