The same way someone measure the magnitude of an earthquake
		
		
		
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		送交者: HunHunSheng 于 2005-11-28, 14:02:16:
回答: 想问问昏昏是用什么仪器测呼吸率的? 由 deadmeat 于 2005-11-28, 13:53:51:
 
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