4. According to advertisements, the higher a suntan lotion’s sun protection factor, or SPF, the more protection from sunburn . In order for a suntan lotion to work, however, one has to remember to put it on before going in the sun, put on an adequate amount to cover the skin, and reapply it as needed. Therefore, it really does not matter hat(这个词是不是错了？) SPF a suntan lotion has Which one of the following best identifies the error in reasoning made in the passage? (C) It cannot be concluded that the SPF is not important just because there are requirements for the application of the suntan lotion.（怎么论证的？） (D) It is unreasonable to assume that all suntan lotions require the same application
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发表于 2005-2-14 00:33:00
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