营销战略中的6P，包括产品策略组合、渠道策略组合和( )。 A．政治力量策略组合

阅读理解。根据短文内容回答问题。

 Dear Amy,

     How are you ? My name is David. I'm an American boy.  For me, sports are fun. I have a collection of

  sports things. I have six basketballs ,three tennis rackets,nine volleyballs,four soccer balls,and five

 baseballs. I play sports and I watch them on TV. Do you play sports?Do you have a sports collection?

1. Is David American?

    _____, _______________.                          

2. Are sports fun for David?  

    _____, _______________.  

3. Does David have a collection of sports things?

    _____, _______________.      

4. How many baseballs does he have?             

    ________________________.

5. Where does David watch sports ?               

    _________________________. 

正常成年人肾小球滤过率为（）。

A．100ml/min

B．125ml/min

C．200ml/min

D．250ml/min

E．500ml/min

系统性红斑狼疮的临床活动指标包括（）

A.发热

B.血沉快

C.血C3降低

D.狼疮脑

E.溶血性贫血

解放后我国在整理和简化汉字方面曾制订过（）、（）、（）等几个表，初步建立了现代汉语用字的字形规范。

C0浓度达到（）时遇火爆炸。