14. The main reason for the population growth isn't so much a rise in birth rates(出生率)　 　　　　　　a fall in death rates as a result of improvements in medical care.

　　　　 A. and　　　　　 B. as　　　　　 C. but　　　　　 D. or

13. Help will come from the UN, but the aid(援助) will be　 　　　　　　near what's needed.

　　　　 A. everywhere　 B. somewhere　 C. nowhere　 D. anywhere

12. Just as the value of a telephone network increases with each new phone　 　　　　　　to the system, so does the value of a computer system increases with each program that turns out.

　　　　 A. adding　　 B. to have added　　 C. to add　　 D. added

11. There was a very interesting remark in a book by an Englishman that I read recently　 　　　　　what he thought was a reason for this American characteristic.

　　　　 A. giving　　　 B. gave　　　 C. to give　　 D. given

10. The number of registered participants(经过注册的参加者) in this year's Marathon was half　 　　　　　.

　　　　 A. of last year's　　　　　　 B. those of last year's

　　　　 C. of those of last year　　　 D. that of last year's

9. Observations were made　 　　　　　　the children at the beginning and at the end of pre-school and first grade.

　　　　 A. towards　　　 B. over　　　 C. of　　　　 D. on

8. The senior librarian at the big desk promised to get the book for me　 　　　　　　she could remember who last borrowed it.

　　　　 A. ever since　　 B. much as　　 C. even though　　 D. if only

7. Do you enjoy listening to records? I find records are often 　　　　　or better than an actual performance.

　　　　 A. as good as　　 B. as good　　 C. good　　 D. good as

6. Just as the soil is a part of the earth,　 　　　　　　the atmosphere(大气层).

　　　　 A. as it is　　 B. the same is　　 C. so is　　 D. and so is

5. 　　　　　　is generally accepted, economical(经济的) growth is determined by the smooth development of production.

　　　　 A. What　　　　 B. That　　　　 C. It　　　　 D. As