单项选择题

神经调节的特点是 A．调节幅度小 B．作用广泛而持久 C．作用迅速、准确和短暂 D．反应速度慢 E．调节的敏感性差

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单项选择题

- May I see your passport, please? - _______ A、No, I didn't bring itwith me. B、Sure. Here it is. C、You have no right todo that. D、Why do you want to see it?

判断题

参数灵敏性愈高，反应器操作愈好。

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