2. 外语
  3. There is a story that is retold whenever a plane crash hits the headlines: if only the aircraft were made of the same【C1】mat ___

There is a story that is retold whenever a plane crash hits the headlines: if only the aircraft were made of the same【C1】mat ___

admin2019-04-17  10
问题
    There is a story that is retold whenever a plane crash hits the headlines: if only the aircraft were made of the same【C1】mat ______as the black box, then everybody would survive. The legendary【C2】______(invincible)of the famous box is familiar to most of us. Yet for such a well-known object, it is remarkably【C3】mys ______. How many of us know that the "black" box is in fact painted fluorescent orange?
    " It was originally called a black box in the days when anything to do with【C4】______(electronic)was new and strange," explains Pete Cook, from a flight recorder manufacturer. "They’re painted orange nowadays to make them more easily【C5】vis______in the event of a crash. "

    There are two kinds of black box: the flight data recorder(FDR)and the cockpit voice recorder(VCR). Both are normally stored at the rear of an aircraft,【C6】______the fuselage(机身)meets the upper tail fin—the part of planes that has the best survival record. The same principle【C7】______(apply)to human passengers—you are safer at the back.
     【C8】De______ their reputation, neither box is in fact indestructible. However, they can withstand a【C9】tern______of 1 , l00℃ for 30 minutes and 250℃ for 10 hours. They must also be able to survive an impact force of 3, 500g—that’s 3, 500 times the force of gravity.
    To take this kind of strain, flight recorders are encased(包装)in two thicknesses of titanium. Memory chips hold the flight data. While FDRs make an electronic record of the plane’s mechanical performance, CVRs record the【C10】com______between the crew. "After a crash in water, they send out a sonar ’ping’ so that they can be found," says Cook. "But they are still only recovered in 80 percent of accidents. "
【C10】
选项
答案communication
解析 (此句表达的意思是“黑匣子FDR记录飞机的机械性能，黑匣子CVR记录机务人员的交谈内容。”结合给出的字母可判断，空格处应填人communication。)
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