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Survey show that every year only 10 percent of cigarette smokers switch brands. Yet the manufacturers have been spending an amount equal to 10 percent of their gross receipts on cigarette promotion in magazines. It follows from these figures that inducing cigarette smokers to switch brands did not pay, and that cigarette companies would have been no worse off economically if they has drooped their advertising.
Of the following, the best criticism of the conclusion that inducing cigarette smokers to swith brands did not pay is that the conclusion is based on
(A) computing advertising costs as a percentage of gross receipts, not of overall costs
(B) past patterns of smoking and may not carry over to the future.
(C) the assumption that each smoker is loyal to a single brand of cigarettes at any one time
(D) the assumption that each manufacturers produces only one brand of cigarettes
(E) figures for the cigarette industry as a whole and may not hold for a particular company
正确答案是E, 但是我比较迷惑的是这题里哪里有把the cigarette industry 和 a particular company 作比较呢? |
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