—_______. They are my uncle and aunt.
A:Yes, they are
B:No, they aren't
C:Yes, those are
D:No, those aren't
在雅典城邦具有参加公民大会资格的是( )
竹节虫静止于树上时像一段树枝,这是竹节虫对其生活环境的一种适应。
Yang Liwei ____ (fly/ flew)into space in Shenzhou V. Now he is very famous.
如果x+yy=74,那么xy的值是( )