按照劳动生产方式的差异,聚落可以分为哪两类?
聚落的主要形式包括城市和乡村.
神经系统是由____ 和____ 以及它们发出的____ 组成。
look good on, pay attention to, affect ones moods, important, fair
have problems with show off, remind me of, make a decision take action
The doctor has devoted most of his time to the patients.
如图,AC与BD互相平分于点O,则△AOB至少绕点O旋转多少度才可与△COD重合( )
下列说法中正确的是( )