题目

听下面一段独白,回答以下小题。【1】What worsened Lily’s fatness?A.Short of exercise. B.Loss of confidence. C.Love of computer games.【2】Why did Lily want to lose weight?A.To find a boyfriend. B.To buy a wedding dress. C.To get married as planned.【3】How much did Lily weigh on her wedding day?A.135 pounds. B.146 pounds. C.206 pounds. 答案:【答案】【1】A【2】B【3】B【解析】【原文】W: Lily graduated from college at the age of 22. After she left college, she found an office job and sat for hours every day on workdays in front of a computer working. She didn’t cook and likes fast food very much. What was worse, she often watched TV in her apartment instead of working out at the gym on the weekend. As a result, her w人的染色体结构或数目变异可能导致遗传病的发生。下列遗传病中,由染色体数目改变引起的是( )A.21三体综合症B.白化病C.猫叫综合症D.红绿色盲
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