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Gaokao Biology Practice Question

4．（6分）若将n粒玉米种子置于黑暗中使其萌发，得到n株黄化苗。那么，与萌发前的这 n粒干种子相比，这些黄化苗的有机物总量和呼吸强度表现为（）

  1. A.有机物总量减少，呼吸强度增强
  2. B.有机物总量增加，呼吸强度增强
  3. C.有机物总量减少，呼吸强度减弱
  4. D.有机物总量增加，呼吸强度减弱

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