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问题 单项选择题

关于特发性血小板减少性紫癜(ITP)的概念，哪一种描述是错误的

A．急性型ITP与感染因素有关

B．血小板寿命缩短

C．骨髓巨核细胞总数减少

D．临床上是较常见的一种出血性疾病

E．急性型ITP多见于儿童

答案

参考答案：C

补全对话，情景问答
从Ⅱ中找出与Ⅰ相对应的句子。
Ⅰ                                             
( )1. Let's play soccer.                        
( )2. Do you have 70 tennis at school?              
( )3. Do they like watching TV?                  
( )4. Does Eddy like sports?                      
( )5. Do you and your friend play soccer every day? 
( )6. I'm sorry I can't play tennis.               
( )7. How many baseballs do you have?.             
( )8. Where's your ping-pong bat, please?           
( )9. Do you like computer games?.                  
( )10. What's favorite sport?                        		Ⅱ                                         
A. Yes, they do.                           
B. No, he doesn't.                         
C. No, we don't.                           
D. Great! That sounds fun.                 
E. No, I have sixty.                       
F. I like both soccer and ping-pong.       
G. It's in my backpack.                    
H. Yes, it's interesting.                  
I. Don't worry, it's easy, let me teach you.
J. Only one.                               
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填空题

在2009年10月6日揭晓的本年度获得诺贝尔物理学奖的三位科学家中，“光纤之父”——              是拥有英国和美国两重国籍的华人科学家。
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