【正确答案】 C

【答案解析】[听力原文]
Six percent of Americans surveyed recently are addicted to the Internet. I think such addiction threatens the stability of both their work and home lives. My report found that six percent of the 18,000 people surveyed were addicted to browsing the Internet.
If the result is to take in the US population as a whole, such findings could mean that millions of Americans have found a "new drug". Personally I think Internet addicts suffer symptoms similar to addicts on drugs or other activities. They said they "almost always" found they lost track of time.
Another 83 percent of those surveyed had a preoccupation with going on-line and 58 percent of them wanted to spend more time on-line. Interestingly, as other addictions, addicts eventually realize that they need to either cut back or quit even if withdrawal will be difficult. My research found that 68 percent of Internet browsers have tried in vain to reduce the amount of time they waste on-line.
I designed a questionnaire to question people about their Internet use. A majority of addicts, exactly 57 percent, go on-line to chat, and 20 percent of the online users go shopping or trade stocks.
If you get up in the middle of night to check your mail, you are an Internet addict. If he was fired for spending an average of seven hours a day at work on the Internet, he is also one addict.