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问题 单项选择题

（）主要从生产者的角度来看问题。它坚持认为消费者喜欢好的东西，而忽略了市场的细分，更忽略了消费者的真正需要。

A.生产观念

B.产品观念

C.推销观念

D.营销观念

答案

参考答案：B

问答题

煤矿安全避险六大系统是什么?
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单项选择题

Most geologists believe oil results from chemical transformations of hydrocarbons derived from organisms buried under ancient seas. Suppose, instead, that oil actually results from bacterial action on other complex hydrocarbons that are trapped within the Earth. As is well known, the volume of these hydrocarbons exceeds that of buried organisms. Therefore, our oil reserves would be greater than most geologists believe.
Which of the following, if true, gives the pest support to the argument above about our oil reserves

A．Most geologists think optimistically about the Earth’s reserves of oil.

B．Most geologists have performed accurate chemical analyses on previously discovered oil reserves.

C．Ancient seas are buried within the Earth at many places where fossils are abundant.

D．The only bacteria yet found in oil reserves could have leaked down drill holes from surface contaminants.

E．(E) Chemical transformations reduce the volume of buried hydrocarbons derived from organisms by roughly the same proportion as bacterial action reduces the volume of other complex hydrocarbons.
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