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- 1be worn out是固定词组吗?Your shoes are ______,pleasebuy a new pair.1、worn out 2、wear out 3、wor
- 2A、B是n阶矩阵,证明:rank(AB)>=rank(A)+rank(B)-n
- 31.Is her name Tom?作肯,否定回答
- 4关于音乐的词语
- 5it was boring and she felt tired
- 6h2o2能不能和no2反应生成n2h4?
- 7I'll tell you ____ he told me last night.
- 8分式约分和通分
- 9为了保护我们少年儿童,我国制定了哪些法律法制
- 10两边都有未知数的方程怎么解 例如:5x+20=6x-8 要具体啊(一步一步的写出来)