外贸的基本分类
参考答案：
出口贸易、进口贸易、过境贸易、货物贸易、服务贸易、知识产权贸易
—_____ the boys enjoy _____ the puppet (木偶) show of Yangzhou?
—Yes, they _____. [ ]
A. Does; watching; does
B. Do; watch; do
C. Do; watching; do
D. Does; watch; does
消渴病的主要病位在（）
A.肺、脾、肾
B.肺、胃、肾
C.肝、脾、肾
D.肺、心、肾
E.肺、肝、肾
