题干
.
In our childhood, we were often _______ by Grandma to pay attention to our table manners.
In our childhood, we were often _______ by Grandma to pay attention to our table manners.
A：demanded
B：reminded
C：allowed
D：hoped
答案(点此获取答案解析）
B
的左、右焦点，P为双曲线上的一点，若
，且
的三边长成等差数列，则双曲线的离心率是（ ）
