题干
.I want to buy that kind of cloth because I__________the cloth_________well.
A：have told ; washe
B：have been told ; washe
C：was told ; washed
D：have been told ; is washed.
答案(点此获取答案解析）
B
存在反函数”是“函数
在
上为增函数”的（ ）
