正确答案:

题目：应从呼吸、脉动、血压、神志、瞳孔这五方面来判断病情轻重。

解析：×

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学习资料的答案和解析：

[单选题]Injectors for use with heavy fuel oil must be cooled by either water or light oil to_____.

avoid carbonization of the nozzle tips