People who are unhappy ______.
A. always consider things differently from others
B. usually are affected by the results of certain things
C. usually misunderstand what others think or say
D. always discover the unpleasant side of certain things
比较存在所得税时政府购买对GNP的作用与没有所得税时政府购买对GNP的作用，前者的作用()。
A. 较大
B. 较小
C. 取决于边际消费倾向
D. 不能确定
Copyright of music may harm the majority of performers in that it
A. in fact protects a few celebrities.
B. covers the creations of most people.
C. forbids the rich as well as the poor.
D. doesn't allow the mass to steal music.
Which of the following does NOT support "work is helpful to health"？
A. Working women are in better health than housewives.
B. People leading a hard life live longer than others.
C. Hardworking people live a longer life.
D. The death rate rises with the unemployment rate.
微信支付 
支付宝支付