以下哪几项是旅游经济效益的衡量指标（）A、接待游客数量 B、旅游的外汇收入 C、旅游

阅读理解。

     There once lived in Greece a learned (博学的) man. He was  so well-known for his wide

knowledge of almost everything that lots of people from all over the country came to learn

things from him. The great man taught his students wholeheartedly and answered their questions with

great patience.

     One day a student asked him,"My dear teacher,didn't you say you yourself have many,many more

questions about things than we do? On the contrary (恰恰相反) ,we students have far more than you. "

     With a smile,the teacher drew two circles-one as large as a big wheel. the other smaller.

    "Of course,l've learned much more. But a teacher does not necessarily (必然地) have fewer questions

than his students. Now, look at these two circles. Within the big one is my knowledge of things,

and within the smaller one yours. Out of the circles is what is still unknown to  us. Since mine is lager,

the line that marks out (划出......的界限)  the  circle  is longer. That means I have more chances to

face what is still unknown. And that's why I myself have more questions than you do. The more you

learn,the more questions you have. You will never learn enough, you know. "

1. One of his students didn't agree that          .

A. the teacher should have so many questions

B. the teacher had more questions than the students

C. the students had more questions than the teache

D. the teacher had as many questions as the students

2. Which of the following pictures tells properly.what the teacher drew?

3. The teacher drew two circles in order to show          .                            .

A. he knew a lot and was good at drawing

B. how one could get more knowledge

C. why he had more questions than the students

D. what the students learned had something to do with the circles

4. The passage mainly tells us that           .

A. it's never too old to learn         

B. it's never enough to learn

C. a teacher should be patient      

D.  we should learn from the learned man

5. The teacher was very famous for             .     

A.  his patience                      

B. his works of drawing

C. his help to the students            

D. his knowledge

建设项目职业病危害卫生审核的重要任务是审查（）。

A.预评价报告是否符合要求

B.选址是否符合卫生要求

C.费用是否满足卫生要求

D.国外同类项目的卫生技术

E.污染处理技术的先进性

充填法典型采矿方法：（）。

A．干式充填法、水力充填法

B．胶结充填法

C．A和B

请写出5种以上的特种功能自动电话机？

简述圆筒造球机工艺流程。