The main idea of paragraph 2 is______.A. colors may have effect on our work and studyB. colors do have effect on our moods (情绪)C. light and bright colors make people happyD. factory workers can work better in a bright room
The main idea of paragraph 2 is______.
A. colors may have effect on our work and study
B. colors do have effect on our moods (情绪)
C. light and bright colors make people happy
D. factory workers can work better in a bright room
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