试题与答案

使用呼吸机或严重缺氧的病人,吸痰前应A.让病人安静休息B.让病人半坐卧位C.加大氧流

题型:单项选择题

题目:

使用呼吸机或严重缺氧的病人,吸痰前应

A.让病人安静休息
B.让病人半坐卧位
C.加大氧流量
D.控制负压
E.叩背排痰

答案:

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参考答案:D解析:[分析] 查询时从指定的表或视图中提取满足条件的记录,然后按照想要得到的输出类型定向输出查询结果,诸如浏览器、报表、表、标签等。在Visual FoxPro中,查询的结果默认是输出到浏览器中。

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题型:单项选择题

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A.基因完全决定性状

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C.基因型相同,环境条件改变,性状一定改变

D.基因对性状的控制受到环境因素的影响

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