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在我国北方, 游泳爱好者冬泳入水后, 身体立即发生一系列生理反应, 以维持体温稳定. 此时，机体不会发生的反应是

Gaokao · Biology · previous-year question

A.兴奋中枢神经系统, 加强肌肉收缩
B.通过反射活动引起皮肤毛细血管收缩
C.通过神经调节减少汗腺分泌
D.抑制垂体活动导致甲状腺激素分泌减少

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