高中综合语言技能训练(SEFC Book 2B)
@@ Unit 13 The water planet
Ⅰ.Warming up
Directions:First guess the answer to the following question and then give it a try.
Question:How long can humans stay underwater without coming up for air?
综合语言技能、技能训练、book、sefc
H319.3;G633.410.2;G423.3
2010-08-30(万方平台首次上网日期,不代表论文的发表时间)
共10页
27-36