题干
My father asked me football in the street. It's dangerous.
A：not play
B：not to play
C：to play
答案(点此获取答案解析）
B
My father asked me football in the street. It's dangerous.
A：not play
B：not to play
C：to play
且
，函数
，当
时，均有
，则实数
的取值范围是