试题与答案

凡具有吸引铁、镍、钴等物质属性的物质,称为()。

题型:填空题

题目:

凡具有吸引铁、镍、钴等物质属性的物质,称为()。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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