同义词在词义上的差别有:____、____、____。
我有____个新书包
下列有关实验现象的说法,不正确的是( )
暑____ 梭____ 虽____ 忧____
者____ 俊____ 虫____ 优____
点A(﹣3,m)和点B(n,2)关于原点对称,则m+n=____ .
Have you the people here? It is said that they have a kind of strange illness.