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  3. 37 Which of the following is NOT true about Ho’s study?A 20 patients were invo

37 Which of the following is NOT true about Ho’s study?A 20 patients were invo

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问题
37 Which of the following is NOT true about Ho’s study?
选项 A 20 patients were involved in the study.
B Thepatient§haveusedseveralanti-HIVdrugs.
C The patients have been treated for up to 18 months.
D 16 patients withdrew from the experiment.
答案D
解析第四段中说到，“有20位病人服用了几种药物（注意combinations这个词）长达18 个月，但有4人中途退出实验”，可见选项A、B、C是正确的，选项D是错误的。
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