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Gaokao Biology Practice Question

4．（6分）当人看见酸梅时唾液分泌会大量增加 ．对此现象的分析 ，错误的是 （ ）

  1. A.这一反射过程需要大脑皮层的参与
  2. B.这是一种反射活动，其效应器是唾液腺
  3. C.酸梅色泽直接刺激神经中枢引起唾液分泌
  4. D.这一过程中有 “电﹣化学 ﹣电”信号的转化

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