下列学习方法中,科学的有[ ]
A、课前预习,课堂集中精力、听讲、课后认真学习
B、自习课,哪科老师在场学哪科
C、遇到不会的问题就马上问老师
D、上体育课请假在教室学习
答案:A
The efficient market hypothesis implies that fundamental analysis:()
A. can achieve superior returns by extrapolating historical data.
B. will be successful if transaction costs are minimized by focusing on a limited number of large-capitalization stocks.
C. requires the analyst to predict movements in relevant variables that affect rates of return.
贝类原料在加工时要用专门的刀具切断闭壳肌,去掉食袋,再用清水洗净。( )