收益是指厂商出卖产品得到的收入，它分为总收益、平均收益和（）。
参考答案：边际收益
Tom is _____ taller than last year
A．too
B．much
C．many
D．more
— What's _____?
— My clothes are out of style. [ ]
A. the wrong
B. wrong
C. matter
D. thing
