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  3. Yesterday my doctor gave me some tablets. There were five in the box. He told me to take one every half hour. How long did they

Yesterday my doctor gave me some tablets. There were five in the box. He told me to take one every half hour. How long did they

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问题 Yesterday my doctor gave me some tablets. There were five in the box. He told me to take one every half hour. How long did they last?
选项 A、They lasted one and a half hours.
B、They lasted 3 hours
C、They lasted 2 hours.
D、They lasted 4 hours.
答案C
解析 医生给了我一盒药，一盒里面共装5粒，每半小时服1粒，如果连续服用，共能服用2个小时。选项C正确。  
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B类竞赛（英语专业本科专科）

大学生英语竞赛（NECCS）

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