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【判断题】
后测设计是只有一组非随机选择的被试,无对照组,只给予一次实验处理,有一个后测,以后测结果作为实验处理效应。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】d___________: adj. (of a place) empty and without people, you feel sad or frightened
【简答题】( )(adj.) you feel slightly angry
【简答题】瑞利散射将光信号向四面八方散射，我们把其中沿光纤原链路返回OTDR的散射光称为（）。
【单选题】What's the main idea of the third paragraph?
A.
Gene technology can help people to give birth to a baby.
B.
Gene technology can be used to clone human babies.
C.
How gene technology can be used to treat hereditary diseases.
D.
Gene technology can solve all the problems of the English imperial family.
【单选题】From the health point of view we are living in a marvelous age. We are immunized from birth against many of the most dangerous diseases. A large number of once fatal illnesses can now be cured by mode...
A.
traffic accidents are mainly caused by motorists
B.
thousands of people the world over are killed each year
C.
the laws of some countries about driving arc too lax
D.
only stricter traffic laws can prevent accidents
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