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An English science-fiction writer, proposed that man-made " stationary" satellit
An English science-fiction writer, proposed that man-made " stationary" satellit
游客
2023-11-20
27
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问题
An English science-fiction writer, proposed that man-made " stationary" satellites ______ to relay and broadcast electromagnetic communication signals.
选项
A、would be used
B、should be used
C、is used
D、uses towards
答案
B
解析
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