题干
—— _______ shall we meet tomorrow?
——At the school gate.
A：Where
B：How long
C：How often
D：When
答案(点此获取答案解析）
A
—— _______ shall we meet tomorrow?
——At the school gate.
A：Where
B：How long
C：How often
D：When
，在
上是增函数，则（ ）