[单选题]Passage ThreeQuestions 31 to 35 are based on the following passage.A．mericans are a very energetic and mobile people, always on the run; rushing from one appointment to another, from a PTA (Parent Teacher Association) meeting to a social planning com

[单选题]Passage ThreeQuestions 31 to 35 are based on the following passage.One of the most exciting races ever run is now in progress between doctors fighting malaria(疟疾)and mosquitoes. According to the most recent counts 225 million people a year suffer att

[单选题]Passage ThreeQuestions 31 to 35 are based on the following passage.H．uman feelings are affected by colour unconsciously. Manufacturers have discovered by trial and error that sugar sells badly in green wrappings，that blue foods are considered by cons

[单选题]Passage ThreeQuestions 31 to 35 are based on the following passage.What are the specific traits that will assist executives to climb the ladder of success? Opinions vary widely. Given approximately equal qualifications and circumstances，some claim th

[单选题]Passage ThreeQuestions 31 to 35 are based on the following passage.In the late 1960's many people in North America turned their attention to environmental problems，and new steel-and-glass skyscrapers(摩天楼)were widely criticized. Scientists pointed ou

[单选题]Passage ThreeQuestions 31 to 35 are based on the following passage.In a family where the roles of men and women are not sharply separated and where many household tasks are shared to a greater or lesser extent，notions of superiority are hard to maint

[单选题]Passage ThreeQuestions 31 to 35 are based on the following passage.The physicist investigating the relationship between time and space, the chemist exploring the properties of a new substance, the biologist probing the mysteries of the continuity of

[单选题]Passage ThreeQuestions 31 to 35 are based on the following passage.D．uring the Christmas shopping rush in London, a story was reported of a tramp(流浪者)who, apparently no fault of his own, found himself locked in a well. known chain store late on Chris

[单选题]Passage ThreeQuestions 31 to 35 are based on the following passage.①The long summer holidays are finally over and some parents are pleased. “We worry more about their safety in the holidays,” explains one mother from North London. If teenagers are no

[单选题]Passage ThreeQuestions 31 to 35 are based on the following passage.A．n understanding of man's effect on the balance of nature is crucial (关键的) to being able to find the appropriate remedial action. It is a very common belief that the problems of the