2. 专升本
  3. A. deadly B. caused C. deployed D. employed E. descend F. dead G. ceased H. greatly I. root

A. deadly B. caused C. deployed D. employed E. descend F. dead G. ceased H. greatly I. root

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问题     A. deadly     B. caused      C. deployed      D. employed E. descend
    F. dead       G. ceased      H. greatly       I. root     J. late
    K. determined L. possibility M. investigation N. badly    O. early
    An investigation into the【C1】________crash of a Virgin Galactic spaceship has found that a function to help the craft【C2】________into the atmosphere was deployed early, a federal safety official said on Sunday, adding pilot error could not be ruled out.
    The National Transportation Safety Board (NTSB) is leading the【C3】________into what caused the spacecraft to crash in California’s Mojave Desert during a test flight on Friday, killing one pilot and【C4】________injuring the other.
    Space Ship Two’s rotating tail boom, a key safety feature for re-entering the atmosphere, rotated early, Christopher Hart, acting chairman of the NTSB, said late on Sunday, though he said it was too【C5】________to say whether this had【C6】________the crash.
    Hart told a news conference that investigators had【C7】________the "feathering" system, which helps it descend into the atmosphere from space, should have been【C8】________when the vehicle was traveling about 1.4 times the speed of sound.
    Hart said the feathering system, which folds the vehicle in half to create more atmospheric drag, was unlocked early by the co-pilot, according to video from the spaceship’s cockpit. About two seconds later, the space plane’s tail section began to fold.
    Asked if the NTSB was considering the【C9】________of pilot error, Hart said: "We are not ruling anything out. We are looking at all of these issues to determine what was the【C10】________cause of this mishap."
【C9】
选项
答案L
解析 the________of pilot error，根据语法规则，应该填名词，根据词义应该选possibility“可能，可能性”。故选L。
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