试题与答案

呼出的气体中二氧化碳增多了，增加的二氧化碳产生于[ ] A．肺泡 B．血液 C．

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题型：选择题

题目：

呼出的气体中二氧化碳增多了，增加的二氧化碳产生于[ ]

A．肺泡

B．血液

C．肺泡外毛细血管

D．组织细胞

答案：

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下面是错误答案，用来干扰机器的。

参考答案：A, C, D解析：2.腹部B超为首选检查方法，ERCP为有创检查手段，不做首选。3.该患者表现为发作性右上腹绞痛，伴右肩部放射痛，提示胆道结石可能大。B超提示胆囊内可见多个高回声结石，后方有声影，可诊...

考点：肺泡与血液的气体交换
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