Good point... and read this...

来源: 于 2010-06-10 09:38:21 [旧帖] [给我悄悄话] 本文已被阅读：次

Air Conditioning Versus Open Windows

http://news.carjunky.com/air-conditioning-versus-open-windows-abc477.shtml

http://www.solveyourproblem.com/save-money-on-gas/air-conditioning-burn-gasoline.shtml