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问题 判断题

无论是气体泄漏还是液体泄漏，泄漏量的多少都是决定泄漏后果严重程度的主要因素而泄漏量又与泄漏时间长短等因素有关。（）

答案

参考答案：对

选择题

a4b﹣6a3b+9a2b分解因式得正确结果为[ ]

A．a2b（a2﹣6a+9）

B．a2b（a﹣3）（a+3）

C．b（a2﹣3）2

D．a2b（a﹣3）2
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改错题
单句改错。
每个句子有且仅有一处错误,或错一词,或多一词,或少一词.
如本句多一词,把多余的词用斜线( \ )划掉；
如本句错一词,在错词下划一横线,并在横线下写出改正后的词；
如本句缺一词,在缺词处加一个漏字符号(∧),并在下面写出该加的词.
 
1. Don't worry. I've arranged a car to meet the new coming president.              
2. One day I was wandering in street when I caught the sight of a tailor's shop.
3. Mrs. Brown was sad to see the machine she had had  repaired went wrong again.    
4. Don't worry about me. I'l l be back on my foot again.                            
5.You have left off a zero in the telephone number.                                  
6.I lost sight of Wang Ping when we reached where looked like a large market.        
7.Now when people refer to England, you find Wales including as well.                
8.The drought is becoming increasingly severely.                                    
9.The doctor gave me some medicine to cure me for my headache.                      
10The governor instructed that a wall was built around the city.                     		__________    
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