题目

在民主政治建设过程中，经历了资产阶级与封建复辟势力、共和派与保皇派多次斗争的国家是（   ） A．英国    B。美国     C。法国    D。德国   答案：C阅读理解CHICAGO- Have you ever worked on your laptop computer with it sitting on your lap, heating up your legs? If so, you might want to rethink that habit from now on. Doing it a lot can lead to “toasted skin syndrome (症状)”, an unusual-looking spotted skin condition caused by long-term heat exposure (暴露), according to medical reports.In one recent case, a 12-year-old boy from California developed a skin discoloration on his left lap after playing computer games a few hours every day for several months. “He recognized that the laptop got hot on the left side; however, he did not change its position,” Swiss researches reported in an article published Monday in the journal Pediatrics.Another similar case is a Virginia law student who needed treatment for the spotted darkening on her leg. Dr. Kimberley Salkey, who treated the young woman, learned the student spent about six hours a day working with her computer placed on her lap. As Dr. Salkey later learnt, the temperature under the laptop could reach 51 degrees. That case, from 2007, is one of 10 laptop-related cases reported in medical journals in the past six years.The condition can also be caused by overuse of heating pads (垫子) and other heat sources that usually aren’t hot enough to cause burns. It’s generally harmless but can also cause such permanent (永久的) skin darkening. In very rare cases, it can cause damage leading to skin cancers, said the Swiss researchers, Drs. Andreas Arnold and Peter Itin from University Hospital Basel. They do not mention any skin cancer cases linked to laptop use, but suggest, to be safe, placing a carrying case under the laptop if you have to hold it on your lap.Dr. Kimberley Salkey said that under the microscope, the affected skin is similar to skin damaged by long-term sun exposure.Major producers including Apple and Dell warn against placing laptops on laps or exposed skin for long periods of time because of the risks for burns. In the past, “toasted skin syndrome” has happened to workers whose jobs require being close to a heat source, including bakers and glass blowers, and in people who gathered near hot stoves to stay warm.Dr. Anthony J. Mancini, chief at Children’s Memorial Hospital in Chicago, said that it’s unlikely that computer use would lead to cancer since it’s so easy to avoid close skin contact (接触) with laptops.（1）According to the passage, “toasted skin syndrome” can be caused by all the followingEXCEPT ______.A.being close to a heat source or hot stovesB.long period of direct contact to hot laptopC.using one’s laptop with a carrying caseD.overuse of heating pad and other heat sources（2）The underlined word “discoloration” in the 2nd paragraph refers to ______.A.spotB.darkeningC.sunburnD.heat（3）It can be learnt from the passage that laptop users ______.A.should avoid close skin contact with laptopsB.are likely to develop a certain kind of cancerC.have known much about the harm of laptop heatingD.should go to see the doctor at once（4）Some computer producers warn against placing laptops on laps for long periods of timebecause of ______.A.the risk for burnsB.the risk of droppingC.the risk of breakingD.the protection of back bone（5）Which of the following might be the best title of the passage? ______.A.Laptop is DangerousB.Skin Damage is PossibleC.A Bad HabitD.No laps for Warm Laptops