青蛙的呼吸器官是() A.鳃 B.肺 C.肺及皮肤 D.气囊 发布时间:2017-05-23 17:56 │ 来源:www.tikuol.com 题型:选择题 问题: 青蛙的呼吸器官是( )A.鳃B.肺C.肺及皮肤D.气囊
题型:选择题 There is _____ smoke and the smoke is _____ thick.[ ]A. too much, much too B. much too, too muchC. much, much D. too many, many too 查看答案