大学MOOC 中级英语写作(广东外语外贸大学)1206405802 最新慕课完整章节测试答案
1 Describe things描写物
第1单元测试
1、单选题:
The wood is so ______ that the ends of the
largest branches may be bent down to within two or three feet of the earth.
选项:
A: strong
B: pliable
C: thin
D: tall
答案: 【 pliable】点我阅读全文

满足AB=BA,则m,n,s,t应满足的条件为__________