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What can be the main idea of the passage? ( )

单选题
2021-09-02 00:20
A、Two groups of people participated in an experiment.
B、Light-colored rooms make students do better on the exams.
C、People in nice-looking rooms tend to be biased in their opinion.
D、The effects of a room’s general appearance and its wall color on visitors.
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正确答案
D

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