根据“馒头在人口腔中的变化”的实验，以下说法错误的一项是（

根据“馒头在人口腔中的变化”的实验，以下说法错误的一项是（　　）

	A．	该实验可证明，唾液能消化淀粉
	B．	要想让唾液发挥作用，温度应保持在37℃左右
	C．	试管内的混合液，如加碘变蓝，则证明管内淀粉已被唾液消化
	D．	馒头的消化与牙齿、舌的作用分不开

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