题目内容
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[主观题]
The author finds great similarity between ______.A.the weight of the hang glider and that
The author finds great similarity between ______.
A.the weight of the hang glider and that of the ultralight airplane
B.ultralight airplanes and military aircraft
C.the inventiveness of John Moody and that of Dctave Chanute
D.the controls used in the Wright brothers' Flyer and those used in today’s ultralight airplanes
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