59.　　 Inflation (通货膨胀) is a blow to the nation’s e　　　 .

58.　　 Advanced farming techniques brought in have increased a　　　 　production these years.

57.　　 The films and stories about killings have a bad e　　 　on children, I think.

56.　　 New scientific centers have been 　　　　(建立)throughout China.

25. In January , 2004, the United States successfully launched “Spirit”, a Mars Exploration Rover, _____ a new milestone in the history of mankind.

　　A. it marked 　　B. marking 　　C. marked 　　D. to mark

24. To answer correctly is more important than _____.

　A. that you finish quickly　　 　　　B. finishing quickly

　C. to finish quickly　　　　　　　 D. finish quickly

23. _____ the front door _____, he had to enter the room through the back door.

　A. Seen; painted　　　　　　　　　 B. Seeing; painted

　C. Being seen; being painted　　　　 D. Seeing; being painted