[audioFiles]audio_eufm_222(20104)[/audioFiles]A、From the starting point back to

游客2024-02-14 20

问题

选项 A、From the starting point back to the earth.
B、Several hundred kilometers.
C、A certain height.
D、About 50 kilometers.

答案 D

解析

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【B1】[br]【B8】[audioFiles]audio_eufm_j48_007(20082)[/audioFiles]vary