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[单选题]
21.5 From the last sentence of this passage we conclude that _____.
A
businesses usually do not pay much for advertisement
B
businessmen know well that advertisement could bring them more profits
C
advertisement could hardly convince people of the value of the goods
D
advertisement usually cost businesses large amounts of money
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参考答案
试题答案：
B
答案解释：
解题思路：B。逻辑推理题。文章最后一句话的意思是：“显然，如果商家认为广告不会给他们带来利润，那么他们是不可能在广告上投资很多的。”换句话说：商家非常清楚广告会给他带来更大的利润。因此B是正确答案。
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