题干
- What is Jenny doing?
- She______.
A：swims
B：is going to swim
C：is swimming
答案(点此获取答案解析）
C
- What is Jenny doing?
- She______.
A：swims
B：is going to swim
C：is swimming
，若对任意
，存在
，使得
，则实数
的取值范围是（ ）
