问题
单项选择题
从对药物治疗效果测量的准确性考虑，下列哪种分析方法的研究结果最可靠
A．人群研究
B．模型研究
C．RCT
D．Markov
E．回顾性研究
答案
参考答案：C
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从对药物治疗效果测量的准确性考虑，下列哪种分析方法的研究结果最可靠
A．人群研究
B．模型研究
C．RCT
D．Markov
E．回顾性研究
参考答案：C
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| The life of the "stay-home" girl Mary is only 12 years old but she doesn't live with her parents. Her parents live far away and she has to 1 after her little brother. Mary is one of the "stay-home" 2 in her town. To 3 money, these kids' parents go to big cities to look for jobs. Their children have to stay at home 4 they have to go to work. Every day, she 5 up at 6:00 am. She cooks 6 . Then she goes to school with her brother. They have supper at 6:00 pm. Then she does her homework and helps her brother wash clothes. She usually goes to bed 7 9:30 pm. Mary is busy, but she is still a 8 student in her class. "I think my life is OK." Mary says." 9 I would like my parents 10 with us." | ||||
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