等差数列{an}的前n项和为Sn,已知am-1+am+1-am2=0,S2m-1=38,则m等于[ ]
A.38
B.20
C.10
D.9
答案:C
根据(),国家对药品价格实行政府定价、政府指导价或者市场调节价。
A《价格法》
B《药品管理法》
C《药品管理法实施条例》
D《国务院价格主管部门及地方政府价格主管部门定价目录》
Which of the following is the most appropriate title for the passage
A.A New Trend in Global Tourism Industry
B.Global Tourism Industry and Employment
C.Global Tourism Industry and Marketing Campaigns
D.Major Players in Global Tourism Industry