使用什么样的评分等级?。
研究人员按从1到11的评分等级给调查对象的外貌打分。
Researchers themselves gauged their subjects' looks on a scale of one to 11.
研究人员按从1到11的评分等级给调查对象的外貌打分。
Researchers % themselves gauged their subjects' looks on a scale of one to 11.
每个人知道，一个60防晒系数评分等级提供加倍防晒系数30的防护-或做它？
Everyone knows that an SPF rating of 60 provides double the protection of SPF 30 - or does it?
每个人知道，一个60防晒系数评分等级提供加倍防晒系数30的防护-或做它？
Everyone knows that an SPF rating of 60 provides double the protection of SPF 30 - or does it?
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