由商品的价格变动所引起的商品相对价格的变动,进而由商品的相对价格变动所引起的商品需求量的变动,称为:()。
A.挤出效应
B.替代效应
C.收入效应
D.外部效应
参考答案:B
既是一种医学道德修养方法,又是一种医学道德境界的是()
A.学习
B.积善
C.慎独
D.自我反省
E.调整
A crew member has just fallen overboard off your port side. Which action should you take?().
A.Immediately put the rudder over hard right
B.Immediately put the rudder over hard left
C.Immediately put the engines astern
D.Wait until the stern is well clear of the man and then put the rudder over hard right