题目内容
一桶油重3千克,倒出
后又灌进
千克,这时桶里的油( )
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方法一:3-3×
+
=3-1+
=2
(千克);2
千克<3千克;
方法二:3×
=1千克;1千克>
千克;
故选A.
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方法二:3×
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故选A.
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