2. 外语
  3. According to a growing number of experts, it is already technically_____to construct a pioneering space colony, powered by solar

According to a growing number of experts, it is already technically_____to construct a pioneering space colony, powered by solar

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问题 According to a growing number of experts, it is already technically_____to construct a pioneering space colony, powered by solar energy.
选项 A、practical
B、flexible
C、feasible
D、beneficial
答案C
解析 四个选项的意思分别是：practical实际的，实践的：flexible柔韧的，灵活的；feasible可行的，可能且合理的；beneficial有益的，有利的。句意是：越来越多的专家认为，建立一个由太阳能提供动力的开拓型太空聚居地在技术上已经是可行的。所以正确答案是C。
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