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【单选题】
宇宙空间资源的特点是
[ ]
A.
空气薄、强辐射、失重
B.
高真空、弱辐射、失重
C.
高密度、强辐射、失重
D.
高真空、强辐射、失重
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Naturally the young are more inclined to novelty than their elders and it is in their speech, as it always was, that most of the vocabulary changes originate. But listening critically to their talk I ...
A.
lack linguistic originality
B.
have always been interested in magic
C.
are becoming more superstitious
D.
are interested in magic when young