All the students p____ at the lecture were deeply touched by his success story.
设F为抛物线y2=16x的焦点,A,B,C为该抛物线上三点,若FA→+FB→+FC→=0→,则|FA|→+|FB→|+|FC→|的值为 ( )
如图,已知直线AB、CD相交于点O,OA平分∠EOC,∠EOC=110°,则∠BOD的度数是( )