25℃时，NaCl在水中的溶解度为6mol·L-1。若在1L水中加入5mol的NaC

阅读理解。

　　A large number of people in the world eat fast food. Whenever you go into a fast food restaurant,

you can see lots of people enjoying their meals there. How do you know in which country people like fast

food best?   

　　The English, people are the world's biggest fans of fast food, while the French(法国人)are the least

interested in quick meals according to a survey done last year.   

　　The survey of thirteen countries shows 45% of the English people say they can't give up fast food

because it's delicious. And 44% of Americans and 37% of Canadians say the same.    

　　The French, proud of their delicious and high-class cuisine, don't like fast food. 81% of them think it

is' unhealthy, followed by 75% of the Japanese.  

　　How about the Chinese? How often do you have hamburgers or fried chicken? It doesn't matter

whether you like Western fast food or Chinese food. The most important thing is to keep a balanced diet.

1. From the survey we know _______fast food best. 

A. the Chinese    

B. the French    

C. the Japanese    

D. the English

2. The survey shows _______ of Americans like fast food.

A. 37%

B. 44%    

C. 75%

D. 81%

3. According to the survey some people can't give up fast food because _______.    

A. it's cheap    

B. it's safe    

C. it’s delicious    

D. it's healthy

4. The underlined word“cuisine”in the passage means _______.    

A. food        

B. house    

C. water      

D. country

5. The survey is about _______.

A. Western countries    

B. fast food    

C. restaurants in the world    

D. Chinese food

铁路工程施工合同的条款主要包括()。

A.当事人名称和住所，工程概况，施工组织设计工期

B.质量与检验，安全施工，双方一般权利和义务

C.材料设备供应;合同价款与支付

D.守约

E.双方当事人协议的其他条款

下列可用作B群链球菌鉴定的试验是（）

A.杆菌肽敏感试验

B.肝汁七叶苷水解试验

C.cAMP试验

D.山梨醇发酵试验

E.6.5％NaCl生长试验

简述秘书写作的内容。

肺心功能不全的慢性肺心病患者，下列治疗措施哪项是错误的

A．持续低流量吸氧
B．积极控制呼吸道感染
C．常规应用强心剂
D．合理选用呼吸兴奋剂
E．保持呼吸道通畅