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【判断题】
()一般情况下,220伏照明线路和36伏的安全照明线路允许装在同一槽板内DA.
正确
B.
错误
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举一反三
【单选题】In Prof. Hoffmann’s mind, maybe most Chinese students don’t know that in the American system, there is a complicated way they elect presidents, called the “____________” in the Constitution. Although ...
A.
Educational college
B.
Vocational college
C.
Medical college
D.
Electoral college
【简答题】Task 4 Fill in the blanks in the following sentences with the words given in the box. Change the form where necessary. encounter come across alter in the course of liberate be reluctant to ...
【简答题】或门的逻辑功能是输入有低电平,输出为低电平;输入全为高电平输出为高电平。
【单选题】我们吃食物可以粮豆搭,粮食第一限制性氨基酸为赖氨酸,大豆为蛋氨酸,取长补短,它是运用--------作用原理补充营养。
A.
蛋白质互补
B.
色素互补
C.
矿物质互补
D.
脂类互补
【单选题】Van Wyck Brooks said: "For three generations the prevailing America character was compact in one type, the man of action who was also the man of God. Not until the eighteenth century did the rift appe...
A.
The Purtian thoughts were removed in the mind of the people in the eighteen century.
B.
American Purtianism is a double-faced tradition of religous idealism and common sense.
C.
The "upper levels" and "lower levels" of the American mind refer to leaders and common people respectively.
D.
The Purtian tradition is only of religious beliefs and practices.
【单选题】关于蛋白质互补作用,下列说法错误的是( ):
A.
适当的蛋白质按比例混合食用，可提高混合蛋白质的生物价
B.
在进行蛋白质互补时，搭配的食物种类越多越好
C.
为达到蛋白质互补作用，各种蛋白质必须同时食用
D.
大豆蛋白和谷类蛋白混合食用，可互补限制性氨基酸
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