47、2010年是我国深圳经济特区成立30周年。当今世界,许多国家和地区都把发展对外经济关系作为发展本国本地区经济的基本战略。这是因为( )

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

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

9) The environmental program could not succeed (without) the participation of the public.

8) He departed for Washington, leaving the children(behind)with their mother.

7) Her eyes quickly became accustomed(to)the dark.

6) My doctor says I'm too tired and has advised me not to take (on)any more work

5) Some ski resorts opened early, thanks (to) a late-October snowstorm.

4) He'll respect you more if you stand(up)to him.

2) The Defense Secretary takes responsibility (for)the upkeep of the armed forces

3) Things were beginning to fall(into)place in my mind. So many st