问题 单项选择题

工资率增加的收入会导致工作时间的( ),而其替代效应则导致工作时间的( )。

A.变少、变多
B.变少、变少
C.不变、变少
D.变多、变多

答案

参考答案:A

解析: 工资率上升的收入效应使得劳动者变得更富有,从而减少工作时间;工资率上升的替代效应使得劳动者享受闲暇的成本或代价更高了,从而减少闲暇时间的消费,把时间放到工作上。

填空题


A Sports体育运动
Many animals engage in play,but homo sapiens is the only animal (1) have invented sports.Since sports are an invention,a part of culture (2) than an aspect of nature,all definitions of sports are somewhat arbitrary. (3) sports are a human universal found in every known culture or a (4) unique to modern society depends upon one’s definition of sports.Men and (5) have always run,jumped,climbed,lifted,thrown, and wrestled,but they have (6) always performed these physical activities competitively. Although all literate societies seem to (7) contests of one sort or another in which men, and sometimes women, (8) in displays and tests of physical skill and prowess,sports may be (9) defined as physical contests performed for their own sake and not for (10) ulterior end.According to this strict definition,neither Neolithic hunters nor contestants (11) religious ceremonies such as the ancient Olympic Games were engaged in sports. (12) on the stipulation that sports must be performed for their own sake (13) the paradoxical elimination of many activities which are usually thought of as (14) ,such as exercises done for the sake of cardiovascular fitness,races run (15) satisfy a physical education requirement,ball games played to earn a paycheck. (16) definition also means abandonment of the traditional usage in which"sport,"derived (17) Middle English disporter,refers to any light hearted recreational activity.In the. (18) of some 18th- century aristocrats,a game of backgammon and the seduction of (19) milkmaid were both considered good sport,but this usage of the term (20) become archaic.

单项选择题