乳母每日泌乳850ml，含蛋白质10克左右。母体蛋白质转换率为70%，_爱下问搜题

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问题单项选择题

乳母每日泌乳850ml，含蛋白质10克左右。母体蛋白质转换率为70%，为满足母体营养需要

若进行乳汁质量监测，何种营养素为首选

A．脂肪

B．铁

C．蛋白质

D．维生素B₁

E．维生素B₂

答案

参考答案：C

解析：蛋白质。

改错题

短文改错。
     此题要求改正所给短文中的错误。对标题号的每一行做出判断；
     如有错误（每行只有一个错误），则按下列情况改正：
     此行多一个词：把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并也用斜线划掉。
     此行缺一个词：在缺词处加一个漏字符号（∧），在该行右边横线上写出该加的词。
     此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。
     注意：原行没有错的不要改。

     We had guests last night who have not stayed
in a B&B hotel ago. They did not want breakfast
because that they were going out early in the
morning. They came back lately and had some
tea. I came into the living room or saw one of
them just go through the kitchen door but turn
on the light. He was looking for a glass the
cupboard. He had no ideas that the kitchen was
not for guests. I just smiled to me and thought,
"What can I do? We are guests after all."

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单项选择题

在干线上，应设红外线轴温探测网，轴温探测站的间距一般按( )设置，铁路局设红外线轴温监控中心，铁路分局设监测中心及红外线轴温行调复示终端，列检所设复示中心。

A．20km

B．30km

C．40km

D．50km