A、Walking on the Moon is more difficult. B、Mars has less gravity than Moon does. C、People can’t keep balance on Mars. D、People n

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问题

选项 A、Walking on the Moon is more difficult.
B、Mars has less gravity than Moon does.
C、People can’t keep balance on Mars.
D、People need more oxygen on Mars.

答案A

解析 短文中指出,通过实验,Newman得出如下结论:在火星上行走可能比在月球上行走容易一些。
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