98、十一届三中全会以来,我国非国有工业的产值占工业总产值的比重由1978年的20%提高到1992年的52%,非国有商业的产值占商业总产值的比重由1978年的10%提高到1992年的70%。出现这一变化的最主要原因是( )

9) At the opening ceremony, the audience was impressed(by)the children’s performance.10) 10)The hunter tried to track(down)the wounded animal.

8) The company must constantly strive(for)greater efficiency

7)Our mission is to seek(out)the enemy and destroy them. say

6) The school sees its job as preparing students to make a contribution(to)society

5) I spend most of my working day dealing(with)customer inquiries.

4Many of the details of the events leading( ) the bombing have come to light inrecent months.

3) The only point(in)its favor is that it contains nothing that is toxic.

2) Many professors turn up their noses(at)television.

1) Alex, then 15, became obsessed(by)the murder, which was never solved.

10) This is a problem that calls(for)immediate solution.