①AD=AE;②BD=CE;③BE=CD;④∠BAD=∠CAE,其中可行的有( )
A:1种
B:2种
C:3种
D:4种
His order is that all of us ____(get) there before 5 o'clock.
下图甲是桃花的结构模式图,图乙是桃的果实示意图。请分析回答下列问题。