A Control of Respiration B Beauty of Fresh Cut Flowers C Role of Respiration D Most Important Aspect of Flower Care E Need

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问题 A  Control of Respiration
B  Beauty of Fresh Cut Flowers
C  Role of Respiration
D  Most Important Aspect of Flower Care
E  Need for Clean Water
F  Ways of Stopping Respiration
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选项

答案B

解析
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