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2025-2026 闯关卷 九年级 物理(JX)(十三)13试题
2026-01-25 19:26:41c3)3水温度为20C,热水器正常工作用时15min,T水的比热容为4,2×0,℃)适用燃气天然气四、实验与热值3×107J/m18,亲爱的额定耗气量3,6m3/h热水产出率12,kg/min(1)此次... -
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