A researcher studying drug addicts found that, on average, they tend to manipulate other people a great deal more than nonaddicts do. The researcher concluded that people who frequently manipulate other people are likely to become addicts.
Which of the following, if true, most seriously weakens the researcher’s conclusion()
[A] Different behaviors of the Internet addicts
[B] The finding of a research on the Internet addicts
[C] The Internet addiction may destroy a family
[D] The establishment of a new service for web addicts
[E] Two examples of harm of the Internet addiction
[F] The Internet addiction may cause many problems
It’s the equivalent of inviting sex addicts to a brothel or holding an Alcoholics Anonymous (AA) meeting at the pub. Internet addicts tired of their square-eyed, keyboard tapping ways need look no further than the Web for counseling.
41.__________.
There is now an online counselling service at www. relate, org. nz for Internet obsessives. Just email the details of your Internet-induced crisis and help comes direct to your inbox. The new breed of cyber-therapists see nothing strange about offering help through the very medium that is swallowing their clients’ free time and splitting their marriages.
Three years ago, researchers announced the discovery
of human genes that were capable of turning ordinary cells into malignant ones.
The news met with some skepticism. Experts asked how a single gene could cause
such a dramatic change. Why does cancer take years or even decades to develop if
it is caused by such a simple and direct process In last week’s issue of the,
three research teams answered those questions by setting forth a new model for
understanding the role of oncogenes in cancer. Each group found that it does in fact take more than a single gene to produce cancer in normal cells. Teams at M. I. T and Cold Spring Harbor Laboratory on Long Island, N. Y. , reported that they could induce cancer in normal rat cells only by inserting at least two types of oncogene into the cells. "A single oncogene produced some changes, A. was caused by normal cells B. sometimes resulted from internal actions of the victim’s own body C. was a hereditary disease D. was a form of malignancy 我来回答: 提交
|