不等式x+|x-2c|>1(c>0)恒成立,则c的取值范围为_____________
作出函数的图像,从图像不难观察,不等式x+|x-2c|>1(c>0)恒成立应满足的条件为.
— How long do you want me to heat the oil?
— Heat it till it _____ to smoke. [ ]
A. would begin
B. begins
C. will begin
D. began
斑马、瞪羚及角马的取食高度各有什么不同?()
A.斑马较高
B.角马居中
C.瞪羚最低
D.斑马最低