【简答题】Internet use seems to cause a drop in psychological( 心 理 )health, according to research at Carnegie Mellon University. Even people who spent just a few hours a week on the Internet experienced more ba...
【简答题】There are 1 passages in this part. The passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best c...