导游人员按职业性质分为几类?

阅读理解。

      Hemingway was one of the famous writers. He was born in America in 1899. His father was a doctor

and loved sports very much, and his mother taught music. Among the six children in the family, Hemingway

was the second oldest.

         Hemingway had written many books in his life. The Old Man and the Sea is one of the most famous

and also my favourite. It came out in 1952. The main character in the book is a fisherman. He is an old

man and fishes alone. People think he is a man with bad luck, because he doesn’t get a fish in eighty-four

days. Every evening, he comes home with his empty boat. But the old man believes himself. Then on the

eighty-fifth day the man takes a big fish. Although he meets a lot of trouble, the old man never gives up.

1. Hemingway’s father was a fan of ___________.

A. books

B. sports

C. music

D. art

2. The Old Man and the Sea was published(出版) in _________.

A. 1852

B. 1899    

C. 1952

D. 1989

3. The old man doesn’t get a fish until the _________ day.

A. fifteenth  

B. eightieth      

C. eighty-fourth    

D. eighty-fifth

4. What does the old man do when he can’t get a fish?

A. He has to look for food somewhere else.  

B. He doesn’t give up fishing.  

C. He doesn’t fish any more.              

D. He has nothing to do.

5. What can we learn from the old man?

A. When we are in trouble, we should not give up.

B. When we want to fish, we can get a big fish.

C. We can do everything well because we are young.

D. We can live a better life if we like fishing.

长途光缆线路主要维修工作项目周期：管道线路的人孔检修（）

行闭式胸膜腔引流时，导管安放位置应是患侧的()。

A．第2肋间锁骨中线处

B．第7、8肋间腋中线处

C．第6、7肋间腋前线处

D．第5、6肋间腋中线处

E．第9、10肋间腋后线处

大城市的公共运输当局正在同赤字作斗争。乘客抱怨延误和故障增多、服务有所减少以及车费的增加。因为所有这些原因以及因为汽油价格并不是高不可攀，使得使用公共交通乘客的数目已经下降，增加了赤字。
下列哪项被上述陈述所支持( )

A．当汽油价格增加时，使用公共交通乘客的数目也增加
B．即使汽油价格增加，使用公共交通乘客的数目也将持续下降
C．假如汽油价格上升到高不可攀的水平，使用公共交通乘客的数目将增加
D．使用公共交通的大多数乘客不使用汽油，因此，汽油价格的浮动不可能影响使用公共交通乘客的数目

锅炉设备的检修一般分为哪几类？