完全没必要，这个网上查查就知道了

来源: 于 2015-01-15 20:06:28 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

http://www.washingtonpost.com/blogs/wonkblog/wp/2014/12/29/the-biggest-winter-energy-myth-that-you-need-to-idle-your-car-before-driving/