未知题型 Psychologists now believe that noise has a considerable effect on people's attitudes and behaviors. Experiments have proved that in noisy situations( even temporary ones), people behave more irritably and less cooperatively; in more permanent noisy situations, many people can not work hard, and they suffer from severe anxiety as well as other psychological problems. However, psychologists distinguish between 'sound' and 'noise'. 'Sound' is measured physically in decibels. 'Noise' cannot be measured in the same way because it refers to the psychological effect of sound and its level of 'intensity' depends on the situation. Thus, for passengers at an airport who expect to hear airplanes taking off and landing, there may be a lot of sound, but not much noise(that is, they are not bothered by the noise). By contrast, if you are at a concert and two people behind you are whispering, you feel they are talking noisily even if there is not much sounD.You notice the noise because it affects you psychologically. Both sound and noise can have negative effects, but what is most important is if the person has control over the sounD.People walking down the street with earphones, listening to music that they en joy, are receiving a lot of decibels of sound, but they are probably happy to hear sounds which they control. On the other hand, people in the street without earphones must tolerate a lot of noise which they have no control over. It is noise pollution that we need to control in order to help people live more happily.According to the passage, people ______.A.can net work in a noisy situationB.will suffer from complete deafness because of noise pollutionC.can be psychologically affected by working in very noisy factoriesD.may cooperate well in a noisy surrounding

单项选择题 在装信封时，要将所有的附件装全，不要遗漏，封口时要再核对一遍。

未知题型 美国射击选手埃蒙斯是赛场上的“倒霉蛋”。在2004年雅典奥运会男子步枪决赛中，他在领先对手3环的情况下将最后一发子弹打在别人靶上。失去即将到手的奖牌。然而，他却得到美丽的捷克姑娘卡特琳娜的安慰、最后赢得了爱情。这真是应了一句俗语：如果赛场失意，那么情场得意。 如果这句俗语是真的，以下哪项陈述一定是假的?( )D.只有情场失意．才会赛场得意