The essential fatty acids that must be derived from the diet are（）
A. Stearidonic acid and eicosatetraenoic acid
B. Eicosapentaenoic acid and docosapentaenoic acid
C. Linoleic and alpha-linoleic acid
D. Gamma-linoleic acid and arachidonic acid
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In a lactose intolerant person, dietary lactose is（）
A. Digested and absorbed
B. Passed into the colon
C. Incompletely digested
D. utilized by bacteria
Palmitic and stearic acids are examples of what（）
A. Saturated Fatty Acids
B. Monounsaturated Fatty Acids
C. Polyunsaturated Fatty Acids
D. Polyunsaturated Fatty Acids
森林资源作为直接实物资源，又包括（）
A. 林地资源 B． C． D
B. 林木资源
C. 其他植物资源
D. 野生动物资源
Suppose there is an advance in technology that allows the automobile industry to manufacture automobiles more cheaply. We would expect（）
A. an increase in both the equilibrium price and the equilibrium quantity of automobiles
B. a decrease in both the equilibrium price and the equilibrium quantity of automobiles
C. an increase in the equilibrium price and a decrease in equilibrium quantity of automobiles
D. a decrease in the equilibrium price and an increase in the equilibrium quantity of automobiles
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