A:②③④⑤⑥
B:③④⑤
C:④⑤
D:④⑤⑥
求证:△ACE≌△CBD.
应用:如图②,在菱形ABCF中,∠ABC=60°,延长BA至点D,延长CB至点E,使BE=AD,连结CD,EA,延长EA交CD于点G,求∠CGE的度数.
在下列分子中,有的是构成生物体的氨基酸,有的不是.请认真分析后回答:
— Jim was angry you.
— Yes. He said he didn't want to be friends with me any more.