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【简答题】
Passage Two Questions 62 to 66 are based on the following passage. You never see him, but they're with you every time you fly. They record where you are going,how fast you're traveling and whether everything on your airplane is functioning normally. Their ability to withstand almost any disaster makes them seem like something out of a comic book.They're known as the black box. When planes fall from the sky, as a Yemeni airliner did on its way to Comoros Islands in the India ocean June 30, 2009, the black box is the best bet for identifying what went wrong. So when a French submarine (潜水艇) detected the device's homing signal five days later, the discovery marked a huge step toward determining the cause of a tragedy in which 152 passengers were killed. In 1958, Australian scientist David Warren developed a flight-memory recorder that would track basic information like altitude and direction. That was the first mode for a black box, which became a requirement on all U.S. commercial flights by 1960. Early models often failed to withstand crashes, however, so in 1965 the device was completely redesigned and moved to the rear of the plane – the area least subject to impact – from its original position in the landing wells (起落架舱). The same year, the Federal Aviation Authority required that the boxes, which were never actually black, be painted orange or yellow to aid visibility. Modern airplanes have two black boxes: a voice recorder, which tracks pilots' conversations,and a flight-data recorder, which monitors fuel levels, engine noises and other operating functions that help investigators reconstruct the aircraft's final moments. Placed in an insulated (隔绝的) case and surrounded by a quarter-inch-thick panels of stainless steel, the boxes can withstand massive force and temperatures up to 2,000℉. When submerged, they're also able to emit signals from depths of 20,000 ft. Experts believe the boxes from Air France Flight 447, which crashed near Brazil on June 1,2009, are in water nearly that deep, but statistics say they're still likely to turn up. In the approximately 20 deep-sea crashes over the past 30 years, only one plane's black boxes were never recovered. 注意:此部分试题请在答题卡2上作答。 62. What does the author say about the black box? A) It is an indispensable device on an airplane. B) Its ability to ward off disasters is incredible. C) It ensures the normal functioning of an airplane. D) The idea for its design comes from a comic book.
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参考答案:
举一反三
【判断题】白居易 “补察时政”“泄导人情”的创作主张就是社会化因素对创作动机的引导与指向。( )
A.
正确
B.
错误
【简答题】带传动在过载时产生打滑,可防止损坏零件,起 ____作用,但不能保证准确的传动比 。
【单选题】带传动在过载时产生打滑,可防止损坏零件,起( )作用
A.
安全保护
B.
稳定传动比
C.
维持传动有效性
D.
保证远距离传动
【简答题】带传动在过载时产生打滑,可防止损坏零件,起 作用,但不能保证 。
【单选题】白居易“补察时政”“泄导人情”的创作主张是创作动机的( )
A.
个体性因素
B.
社会化因素
C.
作家心理失衡
D.
易感点
【判断题】新乐府运动,诗歌革新运动,由唐代诗人白居易、元稹、张籍、李绅等倡导,主张恢复古代的采诗制度,发扬《诗经》和汉魏乐府讽喻时事的传统,使诗歌起到"补察时政"、"泄导人情"的作用,强调以自创的新的乐府题目咏写时事, 故名。
A.
正确
B.
错误
【单选题】关于溃疡性结肠炎的临床特点,下列不正确的是
A.
一种原因不明的大肠慢性炎性疾病,病变主要局限于大肠的黏膜
B.
最常累及直肠和乙状结肠,少数可累及全结肠
C.
病变多沿黏膜层和黏膜下层浸润,直至侵犯到浆膜外
D.
主要表现为黏膜广泛充血、水肿、糜烂、出血和溃疡形成
E.
除一般消化系统症状外,常有结节性红斑、关节炎、眼部病变等肠道外表现
【单选题】结节性红斑主要侵及()
A.
真皮浅层
B.
真皮深层
C.
皮下组织
D.
表皮
E.
基底层
【单选题】平带传送的使用特点在过载时可产生(),能防止薄弱零部件的损坏,起到()作用,但不能保持准确的传动比。
A.
打滑、安全保护
B.
涨紧、安全保护
C.
打滑、制动
D.
涨紧、制动
【简答题】How much sleep do we need? We are all different. Some people need only three hours of sleep a night. Others need ten hours of sleep a night. Most Americans sleep an average (平均值) of seven to eight hou...
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