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A. Language. B. Art.
C. Natural Sciences. D. Physical culture.
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单项选择题
A. Keep it away from heat, drafts and humidity. B. Keep it as empty as possible. C. Wash its interior frequently. D. Set it regularly at zero degree.
A. Keep it away from heat, drafts and humidity.
B. Keep it as empty as possible.
C. Wash its interior frequently.
D. Set it regularly at zero degree.
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