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As a matter of fact
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举一反三
【简答题】what did he order during his last flight?
【简答题】During flight, the camera is covered and hung beneath______.
【单选题】Some birds that are molting maintain balance during flight by______.
A.
constantly preening and caring for their remaining feathers
B.
dropping flight feathers on both sides at the same time
C.
adjusting the angle of their flight to compensate for lost feathers
D.
only losing one-third of their feathers
【单选题】It was recommended that passengers ______ smoke during the flight.
A.
not
B.
need not
C.
could not
D.
would not
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