---________. She went there last week for the first time.
A：has she; Yes, she has
B：has she; No, she hasn’t
C：hasn’t she; Yes, she has
D：hasn’t she; No, she hasn’t
珠江三角洲地区经济发展的特点是（ ）
已知函数 f(x)=|2x+1| ．
