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名词解释题
盲法blind
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From the first paragraph we can learn that ______.A) very few people have the sensitivity of the blind'B) blind people can manage to see things, but not clearlyC) not everybody sees with his eyesD) it is possible to narrow the photosensitive areas of the body
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下列对于盲法特点的陈述正确的是（）A、盲法包括单盲和双盲B、盲法仅是针对受试者而设计的C、仅在指标观测和数据收集阶段实施盲法D、盲法可以减少来自于受试者主观因素所致的偏倚E、盲法中资料收集者一定知道研究对象是否处于干预组
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下列有关盲法的正确描述的选项是（）A、盲法包括单盲和双盲B、盲法仅是针对研究者而设计的C、盲法的实施阶段只包括指标的观测和数据的收集D、实施盲法时资料收集者应不知道受试者所在的组别E、盲法是为了减少可能来自于研究者或受试者主观因素所致的偏倚
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多选题下列有关盲法的正确描述的选项是（）A盲法包括单盲和双盲B盲法仅是针对研究者而设计的C盲法的实施阶段只包括指标的观测和数据的收集D实施盲法时资料收集者应不知道受试者所在的组别E盲法是为了减少可能来自于研究者或受试者主观因素所致的偏倚
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单选题A lot of blind people in the world have to suffer because ______.A
ORBIS didn’t do its best to offer helpB
there is no good medical knowledge and skillsC
some countries can’t afford medical knowledge and skillsD
developing countries don’t pay much attention to the blind
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单选题The last paragraph is mainly about ______.A
how much a training program for a group of doctors costsB
why ORBIS needs your help to continue their workC
who can make thousands of blind people see againD
what you can do to help blind people open their eyes
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多选题下列对于盲法特点的陈述正确的是（）A盲法包括单盲和双盲B盲法仅是针对受试者而设计的C仅在指标观测和数据收集阶段实施盲法D盲法可以减少来自于受试者主观因素所致的偏倚E盲法中资料收集者一定知道研究对象是否处于干预组
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单选题实验设计的基本原则是( )A
随机化、重复、盲法B
随机化、对照、盲法C
随机化、对照、重复D
盲法、对照、重复
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