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【单选题】
1把斧子＝15千克大米，15千克大米是1把斧子的（）。
A.
价值
B.
使用价值
C.
交换价值
D.
价值量
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举一反三
【单选题】若分别购买100kg大米、10kg苹果、1kg巧克力,精确测量后发现三种商品都缺少约0.5kg。一般会公认巧克力缺少最严重,以上事例应用的主要概念是( )
A.
系统误差
B.
随机误差
C.
绝对误差
D.
相对误差
【单选题】One day a poor man was cutting a tree near a river. Suddenly his old axe(斧子) fell in-to the water. He felt very sad because he lost his only axe. Then a fairy (tiller) came out and asked him what was ...
A.
He fell into the river.
B.
He lost his axe.
C.
His axe fell into the river.
相关题目：
【单选题】若分别购买100kg大米、10kg苹果、1kg巧克力,精确测量后发现三种商品都缺少约0.5kg。一般会公认巧克力缺少最严重,以上事例应用的主要概念是( )
A.
系统误差
B.
随机误差
C.
绝对误差
D.
相对误差
【单选题】One day a poor man was cutting a tree near a river. Suddenly his old axe(斧子) fell in-to the water. He felt very sad because he lost his only axe. Then a fairy (tiller) came out and asked him what was ...
A.
He fell into the river.
B.
He lost his axe.
C.
His axe fell into the river.
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