问题 
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According to the third paragraph ,which of the following is true?[ A] Five percent of
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According to the context, "this" in the third paragraph refers to ____ .A.the difficulties
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According to the third paragraph, the process of discovery is characterized by itsA.uncert
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Which of the following statements is CORRECT according to the second and third paragraphs?
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According to the third paragraph saunas can do al
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.According to the third paragraph saunas can do a
 
 
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