问题 更新时间2023/4/3 12:59:00 Usually it cannot (get out) because the outside of the earth is too thick and strong. But in some places the outside of the earth is ____ and weak.选项:A:thin B:thickC:flatD:water 答案 登录 注册 标准答案:a 出自：青书学堂 >> 河南科技大学大学英语3(专升本)
问题 更新时间2023/4/3 12:59:00
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