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问题 选择题

酒精的密度是0.8×103kg/m3，那么[ ]

A．能装0.5 kg纯净水的瓶子一定能装下0.6 kg的酒精 

B．能装0.5 kg酒精的瓶子一定能装下0.6kg的纯净水  

C．满瓶水和满瓶酒精的质量之比是4:5  

D．满瓶水和满瓶酒精的体积之比是4:5

答案

答案：B

填空题

有一个初始为空的栈和下面的输入序列A，B,C,D,E,F，现经过如下操作：push，push，top，pop，top，push，push，push，top，pop，pop，pop，push。上述操作序列完成后栈中的元素列表(从底到顶)为______。
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改错题
短文改错。
At the end of last month, I attended at a celebration                  
meeting hold in our school. At the meeting, 25 advanced teachers         
were praised and those had completed 30 years of teaching             
were given medals. Mr Yang is one of those praised.                  
After the meeting, our classmates and I went to see him.              
Seeing us, the grey-haired teacher looked exciting, when some         
of us said we wanted to be teachers but devote ourselves to              
education in the future, he nodded with satisfactions. He                
said in a very firmly voice, "Teaching is a noble job. Man               
would be very stupid without education." We were all agreed            
and were greatly encouraged by his words.		1. _____
2. _____
3. _____
4. _____
5. _____
6. _____
7. _____
8. _____
9. _____
10. _____
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