换热器的作用是节约燃料,提高()温度。 A.炉尾 B.理论燃烧 C.加热 D.炉膛 发布时间:2018-08-10 21:15 │ 来源:www.tikuol.com 题型:单项选择题 问题: 换热器的作用是节约燃料,提高()温度。A.炉尾B.理论燃烧C.加热D.炉膛
题型:单项选择题 If you are in position of __ teacher, will you allow your students to play computer games all day long?A./; aB.a; /C.the; /D.the; a 查看答案