履行国际间双边或多边贸易协议的基础是实行()。
A、对外贸易垄断制
B、自由贸易制度
C、保护贸易制度
D、统一的对外贸易制度
参考答案:D
与葡萄胎诊断不符的临床表现是()。
A. * * 不规则流血
B.轻微阵发性腹痛
C.胸痛及咯血
D.高血压,蛋白尿
E.闭经
Costs included in the determination of a company’s economic profit that are also most likely to be included in that company’s accounting costs are:()
A. explicit costs.
B. economic depreciation and foregone interest.
C. opportunity costs associated with labor provided by the company’s owners.