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【判断题】
蛋白质、脂肪、碳水化合物被称为三大产能营养素。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】集成运放的输出级通常由( )电路构成,以达到( )功能。
A.
互补对称的功率放大 较高的功率输出
B.
差动放大 抑制零点漂移
C.
多级电压放大 高电压放大倍数
D.
多级电压放大 高功率输出
【单选题】Unlucky events seem to come in threes because ______.
A.
three is an unlucky number in most culture
B.
the mind wants to make connections between events
C.
we don’t notice single unlucky events
D.
we can’t remember more than three connected events
【简答题】书面表达。 以'An unlucky day，写一件自己经历过的事情。 An unlucky day _____________________________________________________________________________________________________________________________________________________...
【简答题】机车旅行时间是指机车牵引列车从____至到达终点站的全部时间。P45T216
【单选题】For some people, unlucky events are connected because ______.
A.
they are psychologically weaker than other people
B.
they have better memories than other people
C.
they define bad luck differently from other people
D.
the first unlucky event has an effect on them which makes the second event more likely.
【单选题】Unlucky events seem to come in threes because
A.
three is an unlucky number in most cultures
B.
the mind wants to make connections between events
C.
we don’t notice single unlucky events
D.
we can’t remember more than three connected events
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