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you can make dofollow link here by making profile links pr8 sites
1 r g7 e& H. E& _9 h1 F- aaas.org
- acm.org
- aol.com
- aps.org
- archive.org
- arizona.edu
- arxiv.org
- asu.edu
- barnesandnoble.com
- blogger.com
- brown.edu
- bu.edu
- cbc.ca
- cern.ch
- cmu.edu
- colorado.edu
- columbia.edu
- computer.org
- debian.org
- dmoz.org
- doi.gov
- duke.edu
- eb.com
- ebay.com
- economist.com
- energystar.gov
- excite.com
- freshmeat.net
- fws.gov
- gnu.org
- go.com
- google.fr
- hotbot.com
- ibm.com
- ietf.org
- iie.org
- imdb.com
- intel.com
- iom.edu
- itu.int
- java.com
- jhu.edu
- lycos.com
- mapquest.com
- metacrawler.com
- msn.com
- msnbc.com
- msu.edu
- nap.edu
- nas.edu
- nationalacademies.org
- nist.gov
- nokia.com
- nrel.gov
- oanda.com
- opensource.org
- oracle.com
- ornl.gov
- pbs.org
- perl.com
- pitt.edu
- princeton.edu
- psu.edu
- python.org
- realnetworks.com
- realplayer.com
- redhat.com
- rutgers.edu
- si.edu
- stanford.edu
- statcounter.com
- state.gov
- truste.org
- uci.edu
- uiuc.edu
- umd.edu
- umich.edu
- umn.edu
- unc.edu
- usc.edu
- usda.gov
- utexas.edu
- utoronto.ca
- verisign.com
- virginia.edu
- vlib.org
- washington.edu
- windowsmediaplayer.com
- winzip.com
- wisc.edu& M$ n1 @& H4 y! l# E' Q$ | j
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发表于 2013-11-17 01:50:37
提升卡
沉默卡
变色卡
稍微看了几个，都是要收费的，应该大部分都是收费的吧
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