【正文】
etween violence on television and violence in the streets of America. More and better research is needed to assess fully the effects of exposure to violence on human behavior。t see or even hear the person. It would be easy for someone to misrepresent himself/herself. Thus someone who says that she is a 12yearold girl. could really be an old man. (B) a wrong judgment about B. understanding somebody wrongly C. giving a wrong description of D. forming a wrong opinion about ∨ (C) I39。t give it up easily. A. frighten B. brave and careless C. firm D. angry ∨ We live in a materialistic society and trained from our earlier days to try to get more. This materialistic opinion has seriously influenced education. Fewer and fewer young people these days learn knowledge only for their own benefit. Every course of studies must lead somewhere, . to a good deal of money. The supply cannot satisfy the demand for skilled personnel(人才 ) and (D) big panies pete with each other to get good students from the university before they have pleted their studies. Big salaries are offered to them. This kind leads to the brain drain, the process by which highly skilled people offer their services to the highest bidder(the pany which provides them more money). The most able citizens of poorer nation move to the wealthier neighbors. As a result, the rich get richer and the poor, poorer. The underlined word means ______. of skilled personnel B. outflow of talented people C. jobhopping(跳槽 ) D. interchangeability of personnel ∨