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- 1Tom began to teach in our school for 10 years ago.Tom _____ _____ in our school for 10 years.
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- 3On mary's ( ) birthday ,she was given a new computer by her parents
- 4在研究“一定电压下,电流与电阻的关系”时,电路如图所示.电源电压恒为3V,滑动变阻
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- 7七年级上册语文课本第九课全文
- 8解放军某部开往边境,原计划需要行军18天,实际平均每天比原计划多行12千米,结果提前3天到达,这次共行军_千米?
- 9人体进行无氧呼吸时产生什么?
- 10已知a,b,c,是△ABC的三边且满足关系式a²+c²=2ab+2bc-2b²,试判断三角形的形状