听力：
section A
1-5：A D C A C
6-7：B B
8：had an Internet Addiction
9：professional help
10：online dating
11-15：C A C A A
16-20：D C D B D
21-25：D B A C B
section B
26-30：A D B B C
31-35：D D B A C
section C
37.figuring
38.independent
39.unusual
40.interacting
41.farmal
42.abstract
43.mystery
44.and he has found how it works and learn to use it approriately
45.by trying it out and seeing whether it works by gradually changing it and refining it
46.including many of the concepts that the schools think only they can teach them