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问题 选择题

免疫是机体的一种特殊的保护性生理功能。下列有关叙述，不正确的是[ ]

A．目前，注射“甲流”疫苗是治疗甲型H1N1流感的有效措施

B．受抗原刺激后的B细胞，所形成的效应B细胞不能与抗原特异性地结合

C．记忆细胞在接受抗原刺激后能够产生相应的效应细胞

D．艾滋病、风湿性心脏病都是因免疫失调引起的疾病

答案

答案：A

完形填空

五．单句改错：（10分）

1.He said he wouldn’t go back to be rich for anything.________

2.Tom had to drop out school because of his poor family._____

3.I spend all of my money very fast and save nothing of it._____

4.Over time, a lot of soil has removed, causing serious erosion.______

5.People were asked to comment scenes from this film.______

6.It is you who has the most important role to play in stopping the erosion.______

7.It is amazing that all this started from 5 Yuan.______

8.A person like him is difficult to get along.______

9.I found some of what he said very worried.______

10.The thief was lucky enough to escape from being caught._____
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选择题

—Have you any________room?

—Sorry, but we're fully booked. [ ]

A. hollow

B. bare  

C. blank  

D. vacant
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