【单选题】

This passage is most probably taken from an article entitled"______".
A．Energy Conservation

B．House Building Crisis
C．Air Pollution Indoors
D．Traps in Building Construction

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根据网考网移动考试中心的统计，该试题：

4%的考友选择了A选项

13%的考友选择了B选项

72%的考友选择了C选项

11%的考友选择了D选项

This passage is most probably taken from an article entitled"______".A．Energy Conservation