题干
With the help of the Internet，news can_______every corner of the world.
A：arrive
B：reach
C：go
D：get
答案(点此获取答案解析）
B
With the help of the Internet，news can_______every corner of the world.
A：arrive
B：reach
C：go
D：get
给出函数f (x)＝2－x－x2，若对于任意x∈［0，＋∞)，恒有fK(x)＝f(x)，则（ ）