关于开放式问题说法正确的是The correct statement about open-ended questions is that（）
A. 用于设置事先不知道答案的问题they are used to set up questions that do not know the answer in advance
B. 开放式问题可将不相干的回答减少到最低程度 open-ended questions can minimize irrelevant answers
C. 容易回答，文化程度较低者也能完成they are easy to answer, even those with lower education level can complete
D. 开放式问题便于统计分析处理open-ended questions facilitate statistical analysis and processing
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录像中提到的地理学奠基人是The founder of geography mentioned in the video is（）
A. 亚历山大·洪堡Alexander Humboldt
B. 卡尔·李特尔Carl Rittle
C. 竺可桢Zhu Kezhen
D. 亚里士多德Aristotle
在本案例中，选择使用开放式厨房的住房的民族是In this case, which ethnic group has open kitchen in their houses（）
A. 朝鲜族Korean Chinese
B. 汉族Han people
C. 满族Manchu people
D. 其他民族Other ethnic groups
封闭式问题是指Closed question means（）
A. 必须要回答的问题questions that must be answered
B. 没有选择的问题no options for choosing
C. 保密的问题the issue of confidentiality
D. 有固定的选择答案的问题with some fixed answers
朝鲜族民居最大的特征之一是存在外廊，这种廊在不同地方面积不同，即越往朝鲜半岛北部面积One of the major features of Korean Chinese dwellings is the front porch, which has different size in different places. What is the trend of the porch toward
A. 变大getting larger
B. 变小getting smaller
C. 没变化no changes
D. 不知道no clear answer
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