—Oh, that's why I can't find them now.
A:have gone to
B:have been to
C:has gone to
D:has been to
植物果实的各部分是由花的相应部分发育而来,其中匹配错误的是( )
某有机物结构简式如下:
下列关于该化合物的说法正确的是( )