200000m= km,500000cm= m,0.0035mm= m,0.005m= km,0.007μm= m,0.00056m= nm 用科学计数法计算!!! 拜托啦!!!!!!!... 拜托啦!!!!!!! 展开 1个回答 #热议# 在购买新能源车时,要注意哪些? chenyaoliang19 2011-10-05 · TA获得超过6636个赞 知道大有可为答主 回答量:2067 采纳率:50% 帮助的人:1832万 我也去答题访问个人页 关注 展开全部 200000m=2×10^2 km,500000cm= 5×10^3m,0.0035mm=3.5×10^(-6) m,0.005m= 5×10^(-6)km,0.007μm=7×10^(-9) m,0.00056m= 5.6×10^5nm 本回答被提问者采纳 已赞过 已踩过< 你对这个回答的评价是? 评论 收起 推荐律师服务: 若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询 为你推荐: