河南的道地药材是( )
A．砂仁 B．金银花 C．地黄 D．延胡索 E．三七
参考答案：C
解析：[知识点] 根及根茎类中药——地黄
--- What ______ when I phoned you?
--- I ______ my work, and I was about to go out．
A．have you done; finished
B．were you doing; have finished
C．did you do; had just finished
D．were you doing; had just finished
药物经济学研究的最终服务对象是
A．医疗保险公司
B．临床医务人员
C．卫生决策者
D．大众传媒
E．公众
