6 b. D @& n2 j1 p9 E. aIn Tier 1 markets, some 50% of all traffic is available at 1 cent per click. ' r6 @! `3 ]; E+ f$ ]* H
In Tier 2 markets, between 20%-49 % of traffic is available at 1 cent per click. 1 |" s4 l0 j7 R$ e) I5 E9 V) U
0 x- J$ k! J! N [" o+ K$ p
发表于 2013-8-19 11:28:21
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