右心衰竭引起呼吸困难的原因为A．右心房压力升高刺激化学感受器而兴奋呼吸中枢 B．代谢

阅读理解。

     My family live in this street. In the morning, my father goes to work and all the children go to school.

My father takes us to school every day. My mother is at home and does the housework. She always has

lunch at noon and sees her friends in the afternoon. In the evening, all the children come home from school. we always get home early. My father comes home from work very late. In the evening my two brothers

and I always do our homework. We go to bed at ten. My father and mother usually read newspapers. On Saturday, we watch TV or play computer games.

1. _______ goes to work in the morning.

A. We all  

B. My father  

C. My mother  

D. My parents

2_______ lunch at home.

A. My mother has    

B. My father has  

C. All the family have  

D. We have

3. _______ home early.

A. My mother comes        

B. My father comes

C. All the family come      

D. We come

4. We can watch TV or play computer games _______ .

A. on Saturday    

B. every day    

C. in the evening    

D. on Sunday

5. There are _______ people in my family.

A. three      

B. four        

C. five            

D. seven

项目容易受到风险的影响，这是因为：（）

A.Muphy）规则阐述到：“如果一件事情可能会出问题，它就会出问题”

B.每一个项目在某些方面都是特殊的

C.在项目队伍层面上，项目管理工作通常是无法获得的

D.总是没有充足的资源来完成工作

比较两个带符号的数A、B，当A=B时程序转移，测试的条件为（）

A．ZF=1

B．ZF=0

C．SF=1

D．SF=0

一般用途化妆品卫生化学检验指标限值中的铅（）。

A.≤1mg／kg

B.≤40mg／kg

C.≤10mg／kg

D.≤2000mg／kg

E.总量≤6%

电话银行签约需设置几位数的电话银行密码（）

A.12位

B.10位

C.8位

D.6位