人口抚养比是指少儿人口（0〜14岁）及老年人口（65岁及以上）之和与劳动年龄人口

阅读理解。

     Bob Pearson is an old man.  He  has  two  big  houses and a new car.  He has no wife.But  he  is a

father of four children.  He has two sons and two daughters. One son is from England. His name is Bill.

The other son is from America .His name is Mike. One  of  his daughters is  from  China. Her  name is

Lanlan. Mikou is from Japan. Bob Pearson  is  not the children's real(真正的)father, but he loves them

very much .The  children  love  their "father"  too．Bob Pearson buys many toys for "his" children The

boys  play  with  toy cars. The girls play with dolls（洋娃娃）and  toy  animals. Bob  Pearson  is  the

children's "father",  and he is their good friend too.

1.There are          people in Bob’s family.

A．four    

B．five    

C.   six      

D．no

2. The children are           

A．Bob’s  children          

B．Bob's friend's real children

C．not Bob's friends          

D．not Bob's  children

3. Bob's children are from         countries．

A．the same  

B．two  

C．four      

D．three

4. Bob buys          for his sons.

A. toy cars    

B. dolls  

C. toy animals  

D. animals

5．下面的句子中符合短文意思的是          。

A. Bob PearSon is a young man.

B. Bill and Mikou like toy animals.

C. The young Bob has a nice wife.

D. Lanlan is a Chinese girl and  she likes dolls.

与细菌黏附作用有关的是（）

A.普通菌毛

B.荚膜

C.芽胞

D.鞭毛

E.质粒

什么是自由回转临界角？

英国客户A漫游至北京，拨打美国客户B的手机，拨号方式为：（）或（）。

妇女面青多由于（）

A.水饮内停

B.湿热下注

C.肝肾阴虚

D.肝强脾弱

E.肾阴虚