A:1丙;2甲;3乙
B:1乙;2甲;3丙
C:1甲;2乙;3丙
D:1丙;2乙;3甲
读我国某区域(图中阴影区域)分布图,完成下面小题。
下列加下划线字注音不正确的一项是( )
下列各命题正确的是 : ( )
After working all day,he was so tired that he was in no______to go to the party with us.
精子与卵细胞结合形成受精卵和受精卵开始分裂的部位分别是( )