问题
选择题
Once out of the earth’s gravity, the spaceman is ___ by the problem of weightlessness.
A．affected
B．effected
C．related
D．offered
答案
答案：A
词义辨析。A影响（动词）；B是名词影响；C相关；D提供；句意：一旦摆脱了地球的引力，宇航员就受到失重问题的影响。
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