皮皮学，免费搜题
登录
搜题
【简答题】
简述大气变污染。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Anyone can borrow books from this library _______ he keeps them clean and returns them in time.
A.
even if
B.
unless
C.
so that
D.
as long as
【简答题】将军亚夫 持兵揖
【简答题】When you ______ with audience, a PowerPoint presentation is a great help.
【简答题】将军亚夫持兵 揖
【简答题】涂层结构中“三层PE防腐涂层结构”分别是哪三层: 、 、 。
【简答题】_____________is extremely useful. I feel ________ a great presentation.
【单选题】Chris: Dana, I just want to tell you--(that was a great presentation today. Well done!)
A.
I saw your presentation.
B.
I thought you gave a great presentation today. Excellent work.
C.
Your presentation today--it wasn't much, really.
【简答题】涂层结构中“三层PE防腐涂层结构”分别是哪三层: 、 、 。
相关题目：