题目内容

When will the group discussion start？

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问卷设计中的关键技术是()

A. 题型选择
B. 答案设计
C. 问题排列设计
D. 提问技术

Olestra is different from ordinary fats in that ______.

A. it passes though the intestines without being absorbed
B. it facilitates the absorption of vitamins by the body
C. it helps reduce the incidence of heart disease
D. it prevents excessive intake of vitamins

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The underlined word "champion" means ______.

A. support
B. win
C. fight against
D. protect

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参与观察中，如果其他被观察者知道他们的行为正在被观察和记录，就是()

A. 公开的参与观察
B. 隐蔽的参与观察
C. 科学的参与观察
D. 结构式参与观察

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