题干
— Excuse me, may I speak to Jill, please?
— ____________.
A：Yes, I am.
B：Do you know him?
C：I'm speaking.
D：This is Jill speaking.
答案(点此获取答案解析）
D
— Excuse me, may I speak to Jill, please?
— ____________.
A：Yes, I am.
B：Do you know him?
C：I'm speaking.
D：This is Jill speaking.
，下列判断合理的是（ ）
，集合
，则
( )