题干
--- How long will your stay here ?
---For ________ .
A：one and two day’
B：one and two day
C：a day or two
D：one or two day
答案(点此获取答案解析）
C
A：one and two day’
B：one and two day
C：a day or two
D：one or two day
，则
”的逆否命题是
