Good point... and read this...

來源: 於 2010-06-10 09:38:21 [舊帖] [給我悄悄話] 本文已被閱讀：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