When the space ship was , I could really feel the high gravity.
A. lifting off
B. landing
C. sending away
D. giving a lift
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(答案→)A. lifting off
B. landing
C. sending away
D. giving a lift
解析：考查词义辨析：A. lifting off（飞机、火箭等）起飞，发射升空， B. landing着陆C. sending way送走D. giving a lift搭车，句意：当飞船发射升空的时候，我可以感到很强的重力。选A。