Tim would like to know . As for it, you'd better not tell him.
A:new something
B:something new
C:anything new
D:nothing new
造成我国农业“西牧东耕”差异的主要因素是( )。
下列有关子叶的叙述,不正确的是( )
看看哪个句子与图片意思相符( )
观察下列等式:解答下面的问题:21+22+23+24+25+26+…+22015的末位数字是____ .