Because prices of food and clothing and almost everything else in that country have steadily gone up, the buying          of the dollar has gone down.

A．energy

B．force

C．power

D．strength

濒临灭绝状态的稀有珍贵野生药材物种是

A．医疗机构制剂室
B．药品生产企业
C．药品批发企业
D．药品零售企业
E．各级医疗机构