【单选题】【消耗次数：1】
蛋白质净利用率(%)表达为( )。
①
消化率×生物价
②
功效比值×生物价
③
消化率×功效比值
④
利用率×生物价
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相关题目
【单选题】
下列哪一选项对食物蛋白质的生物价描述正确
①
评价食物蛋白质含量的一项指标
②
评价食物蛋白质消化程度的一项指标
③
评价食物蛋白质吸收程度的一项指标
④
评价食物蛋白质消化吸收后被机体利用程度的一项指标
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蛋白质的消化率测定的实际应用中，一般不考虑粪代谢氮，不仅实验方法简便，且对人是有一定安全性，这种消化率称为( )。
①
消化率
②
实际消化率
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表观消化率
④
真消化率
【多选题】
关于利用率，说法正确的是（ ）
①
分为网络利用率和信道利用率
②
信道利用率越大，时延也就越大
③
信道利用率不可能接近100%
④
信道利用率达到50%时，时延就是空闲时时延的2倍
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may well
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Manufacture
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chiefly
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look round
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