学帮网if one light-year≈95000000000000km,it can be written as km in scientific notation.
来源：学生作业学帮网 编辑：学帮网 时间：2024/06/06 02:44:58
if one light-year≈95000000000000km,it can be written as km in scientific notation.
如果一光年约等于95000000000000千米,那么从科学的角度来看它是可以用千米来作为计量单位的.