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【简答题】
What is the main goal of sending human missions to Mars? A) To find out if life ever existed there. B) To see if humans could survive there. C) To prove the feasibility of large-scale space ventures. D) To show the leading role of science in space exploration.
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【简答题】将万用表置于Rx1挡检测某电感器的好坏,测量结果如下图,说明该电感器______
【单选题】Language is productive or creative mainly because of its duality and ________.
A.
recursiveness
B.
vocabulary
C.
grammar
D.
phonemes
【多选题】Language is productive or creative mainly because of its ________.
A.
recursiveness
B.
vocabulary
C.
duality
D.
phonemes