华支睾吸虫的感染阶段和致病阶段分别为（）

A.虫卵、成虫

B.毛蚴、成虫

C.囊蚴、成虫

D.囊蚴、虫卵

E.毛蚴、虫卵

—____ have you lived here?

—Since last year. [ ]

A. How long

B. How often

C. How soon

D. How far