问题
单项选择题
不能体现知情同意的是（）。
A.以健康人或病人作为受试对象
B.实验时使用对照和双盲法
C.不选择弱势人群作为受试者
D.实验中受试者得到专家的允许后可自由决定是否退出
E.弱势人群若参加实验，需要监护人的签字
答案
参考答案：B
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不能体现知情同意的是（）。
A.以健康人或病人作为受试对象
B.实验时使用对照和双盲法
C.不选择弱势人群作为受试者
D.实验中受试者得到专家的允许后可自由决定是否退出
E.弱势人群若参加实验，需要监护人的签字
参考答案：B
| 完型填空。 | ||||
| Mary is a little fatter than she wants to 1___________. She 2___________ to lose some weight (减肥). So she is on diet (节食). She tries not to eat too 3___________. She eats very few sweets 4___________ it will make her 5___________. She does exercise every 6___________. She swims very often, and she runs about two kilometres a day. Now she is very happy because she is thinner than 7___________. Mary's sister is young and thin. She does 8___________ every day, too. She doesn't 9___________ much meat. But she eats a lot of fruit and vegetables because she thinks they are good 10___________ her health.
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