7 ~) w$ L6 E7 h' kIn Tier 1 markets, some 50% of all traffic is available at 1 cent per click. ) P' j3 }! L8 b4 X* XIn Tier 2 markets, between 20%-49 % of traffic is available at 1 cent per click. 7 G# O* n( D0 Z- F6 g( G0 n$ y/ _. _5 R8 _( P8 F- [, o
发表于 2013-8-19 11:28:21
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