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鲁教版九年级化学上单元周周测一(第一单元)习题课件
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DADBCCCDBC分子原子HOH2O2H2OACDFJBEGHIKLABDC碳氧试管蒸发皿吸取或滴加少量液体BA FE GDA倾斜药匙或纸槽把瓶塞倒放,手持量筒,使量筒倾斜或试剂瓶标签向着手心细口瓶水槽镊子玻璃棒黄红外焰焰心白烟外焰焰心变浑浊水二氧化碳石蜡的固体小颗粒外焰
DADBCCCDBC分子原子HOH2O2H2OACDFJBEGHIKLABDC碳氧试管蒸发皿吸取或滴加少量液体BA FE GDA倾斜药匙或纸槽把瓶塞倒放,手持量筒,使量筒倾斜或试剂瓶标签向着手心细口瓶水槽镊子玻璃棒黄红外焰焰心白烟外焰焰心变浑浊水二氧化碳石蜡的固体小颗粒外焰
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