问答题
1、摩擦生电; 2、电磁感应生电; 3、静电感应生电; 4、光伏生电; 5、压电效应生电; 6、电偶效应生电等。
top-selling products畅销产品
未知题型top-selling products畅销产品
Living in the country is less () ______ than living in ...
未知题型Living in the country is less () ______ than living in the city.
() http://www.esdict.cn/webting/desktopplay id=2511e8f5...
未知题型() http://www.esdict.cn/webting/desktopplay id=2511e8f5-d083-4d97-86e3-498e3ee5697e&st=00:05:46.74