普惠制
参考答案：
即普遍优惠制，是发达国家对于来自发展中国家的某些产品给予的普遍的、非歧视的、非互惠的关税优惠制度。
When I saw her again ten years later, she had changed a lot and looked different _____ she used to be. [ ]
A. what
B. from what
C. in what
D. from
属于风寒壅肺喘证痰的特点的是（）
A.痰多稀薄而带泡沫
B.胸胀而痛
C.痰多色白
D.张口抬肩，鼻煽气促
E.痰少质黏，烦热口渴
