“凡大医者，必当安神定志，无欲无求，先发大慈侧隐之心，誓愿普救含灵之苦”出自( )语

A．孙思邈
B．白求恩
C．张仲景
D．希波克拉底
E．杨泉

— How long have you been collecting shells? 

— ______. [ ]

A. After I left school

B. Before I moved here

C. When I went to the beach

D. Since I was ten years old