被称为“脉学之宗”的古代医者是谁（）
A.华佗
B.扁鹊
C.张仲景
D.孙思邈
参考答案：B
---What’s this ____ the wall? --- It’s a photo ____ my family.
A．in, in
B．on, of
C．in, of
D．on, on
