中链三酰甘油含量丰富的食物是（）。
A.棕榈油
B.奶油
C.花生油
D.橄榄油
E.黄油
参考答案：A
解析：中链三酰甘油含量丰富的食物是棕榈油。
---I’d like some apple juice.
---Sorry, there is ______left. What about some other drink?
A．nothing
B．no
C．none
D．not many
Hay farmers are in a perfectly competitive market. Assume that each acre of land produces 100 bushels of hay. The marginal revenue product of an acre of land is then:（）
A. (price of hay per bushel)/100.
B. price of hay per bushel.
C. 100 × (price of hay per bushel).
