下列有关说法正确的一组是( )
如图,AB∥CD,FD平分∠BFC,若∠EFB=50°,则∠D=( )
请将下列结构的发育结果用线连接起来:
①子房
____
A果皮
②珠被
B果实
③受精卵
C种皮
④受精极核
D胚
⑤子房壁
E胚乳
⑥胚珠
F种子
____(凝视,盯着看)at people is considered rude in Britain and young children will be scolded by their parents if they look too long at another person.