填上填上合适的单位名称,使等式成立0.9( )=900000( )包括km m dm hm cm 和它们的平方。

0.9( 毫米 )=900000(千米)```````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````` )

叶彤1 ：您好。
0.9（吨＝900000（克）
0.9（千米）＝900000（毫米）
祝好，再见。

0.9( 平方千米 )=900000( 平方米 )