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Does your teen spend all of his or her free time...
52.C 理解推断题.根据第一段内容可知提了几个问题,这几个问题都是为了引出本文的主题,故选C.53.B &...
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24.A 细节理解题.根据Unlike previous Museum Day celebrations,you must sign up for a free ticket that admits two people to ...