题干
—Here you are.
—_______
A：Thank you.
B：No.
C：Yes.
答案(点此获取答案解析）
A
—_______
A：Thank you.
B：No.
C：Yes.
个单位后,再作关于x轴的对称变换,得到函数y=1-2sin2x的图像,则f(x)是( )
