---Our teacher is always kind.
---Yes. When she asked me to answer her question yesterday, I gave a wrong answer at first. She _______me to try again.
A:encouraged
B:taught
C:enjoyed
D:protected
(情境)在十二届全国人大二次会议上,有代表就当下我国公民读书学习现状提出担忧,“读书少”、“去经典化”、“重娱乐”、出现提笔忘字现象等,呼吁国家尽快制定相关制度扭转不良现象的发展,努力实现文化强国的目标。阅读材料回答:
已知正比例函数y=2x的图象过点(x1,y1)、(x2,y2).若x2﹣x1=1,则y2﹣y1=____.