题干
— Congratulations! Your English teacher told me you got an A this time.
— Thank you. She is very .
— Thank you. She is very .
A：impressed
B：embarrassed
C：terrified
D：frustrated
答案(点此获取答案解析）
A
与直线
在
轴右侧的交点按横坐标从小到大依次记为
，
，
，则
等于 （ ）
