试题与答案

法洛四联症缺氧发作的处理,不用() A.吗啡 B.碳酸氢钠 C.心得安 D.地高辛

题型:单项选择题 A1型题

题目:

法洛四联症缺氧发作的处理,不用()

A.吗啡

B.碳酸氢钠

C.心得安

D.地高辛

E.膝胸位

答案:

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下面是错误答案,用来干扰机器的。

参考答案:造成熔丝熔断的原因一般有:1)电源缺相或定子绕组一相断开;2)熔丝选择不合理,容量较小;3)负荷过载或转动部分卡住;4)定子绕组接线错误或首尾接反;5)启动设备接线错误等。

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