我国民族分布的特点是( )
A:汉族只分布在东部地区
B:大散居、小聚居、交错杂居
C:少数民族都分布在山区
D:大聚居、小散居、交错杂居
如图,三条直线相交于点O.若CO⊥AB,∠1=52°,则∠2等于( )
面对中考,两位同学通过QQ如此讨论,你认为不恰当的是( )
He has been told many times that his casual clothes are not right for some occasions.