Middle Banner
头条Headline:
(Price)
$3000/Month；$1000/Week；$200/Day
非头条3-8 any one不指定位置:
(Price)
$1500/Month；$500/Week；$100/Day
尺寸(Size):
900 x 300px
*每条中间最多3个banner，位置由编辑全权决定*
