呃逆日久，腰膝酸软，呃声难续者，可用
A．麻子仁丸B．更衣丸C．三物备急丸D．润肠丸E．五仁丸
参考答案：C
— Is your father still teaching?
— Yes. It's about sixteen years ______ he started teaching. [ ]
A. until
B. after
C. since
D. with
简述设计与艺术的渊源？
