皮皮学，免费搜题
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【单选题】
食物进入口腔后引起的唾液分泌属于（）A.
神经调节
B.
体液调节
C.
神经一体液调节
D.
自身调节
E.
负反馈调节
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
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