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最佳答案:星期六下午万里无云、阳光明媚,我怀着好奇的心情来做一个实验——“黑与白”的实验.想要做这个实验也不难,只要找一个樟脑球,在抓一个蚂蚁就可以了.我在家里翻箱倒柜,
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最佳答案:Nowadays,experimental usage of animal has become a widely concerned issue around
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最佳答案:Welcome to our school lab.I'm very happy to introduce our school's lab to you.We
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最佳答案:Purpose:to see what will happen if oil drops on waterEquipment:a glass bottle,wa
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最佳答案:酱油不结冰!那是暑假里的一天,好热呀!连舌头上都仿佛着了火似的.于是我向妈妈提出想去买根冷饮降降温浇浇“火”.妈妈点点头说:“干脆多买几根放在冰箱里备着,顺便再