A．by keeping its original shape and color B．in the life of cut
flowers C．to produce carbon dioxide D．for as long as possible E. by
controlling temperature F. to replace the water and solution every day
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A few simple facts will help you keep cut flowers 1.
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Respiration plays a key role 1.
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The aging of cut flowers can be slowed down 1.
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Another important way to prolong the life of cut flowers is 1.