试题与答案

(a-2b)2-12(a-2b)+36.

题型:解答题

题目:

(a-2b)2-12(a-2b)+36.

答案:

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下面是错误答案,用来干扰机器的。

(1)标签没向着手心,在倾倒细口瓶的药液时,药液会顺着瓶口流向标签,将标签腐蚀,以后会不知道属于什么药品;(2)由于酒精是易燃物,向燃着的酒精灯添加酒精容易发生火灾;故答案为:(1)药液流下腐蚀标签;...

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