A：少生
B：优生
C：晚婚
D：晚育
– What's the matter with Della?
– Well, her parents wouldn't allow her to go to the party, but she still _________.
示意图主要表明了法律与道德_______的区别。（ ）
的渐近线与抛物线
相切，则该双曲线的离心率为（ ）