A comet is distinguished from other bodies in the solar system____
问题描述：
A comet is distinguished from other bodies in the solar system____
A it is appearing
B by its appearance
C is appearing
D is its appearance
为什么选B
答
因为是作方式状语的,用By+ 名词 这个介词短语
请在客户端右上角评价点“满意”即可,