题干
—Do you think you could do without help?
—______. This is not the first time for me.
A：Take care
B：Hurry u
C：Not exactly
D：Don’t worry
答案(点此获取答案解析）
D
A：Take care
B：Hurry u
C：Not exactly
D：Don’t worry
，则z表示的点在（ ）.
