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问题 选择题
在平面直角坐标系中，点P（4-2a，a-4）在第三象限，则a的取值范围是（   ）
A.a>2
B.a<4

C.2＜a＜4

D.2≤a≤4

答案

答案：C

阅读理解
阅读理解。
China's Manned Space Program
The first stage The second stage The third stage
Time: October l5,2003
Spaceship: Shenzhou V
Main events: Chinese spaceman Yang Liwei was
sent up into space. He went around the
earth l4 times in his one -day flight. China became the third country to succeed in manned space flight.		Time: October l2, 2005
Spaceship: Shenzhou?
Main events: Chinese spacemen Fei Junlong
and Nie Haisheng were both sent up into space. On October l7, the two Chinese space heroes  safely returned to the earth

Future plans
1. China will make a manned moon
landing at a proper time around 2017.
2. China plans to set up a permanent (永久的) space lab, and build its engineering system in the near future

1．The Chinese spaceman traveling in space in the autumn of 2003 is     _    ．    

A．Yang Liwei      
B．Fei Junlong    
C．Nie Haisheng    
D．Zhai Zhigang

2．Before China, How many countries had already sent their spacemen into space?   

A．Only one．      
B．Two．        
C．Three．        
D．We don't know

3．It took Yang Liwei  _       in Shenzhou V to circle the earth in space．    
A．one day        
B．two days      
C．three days      
D．fourteen days
4．During the second stage,Chinese spacemen stayed in space for ___    ．    
A．one day        
B．four days      
C．five days        
D．fourteen days
5．Chinese spacemen will possibly walk on the moon around   __     ．   
A．2007          
B．2008          
C．2010          
D．2017
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单项选择题

咖啡的第一次去顶高度是（）

A、1.5米

B、2米

C、1.8米

D、3米
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