特殊句式the scientists know only when a great deal more informat

学习 时间:2026-09-29 19:00:45 阅读:5567
特殊句式the scientists know only when a great deal more information has been obtained,__ possible to plan a manned trip to Mars.A it will be B will it be C it is D is it

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尊敬的仙人掌

孤独的热狗

2026-09-29 19:00:45

倒装句,因为前面的ONLY