选择题：我国许多城市中建有大型绿地，绿地中的人工湖具有“吸热”功能，若某一人工湖湖水的质量为1.0×107kg，水温升高2℃，则湖水吸收的热量为________J，若这

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我国许多城市中建有大型绿地，绿地中的人工湖具有“吸热”功能，若某一人工湖湖水的质量为1.0×107kg，水温升高2℃，则湖水吸收的热量为________J，若这些热量被同等质量的砂石吸收(已知砂石的比热容小于水的比热容)，则砂石升高的温度_______2℃。（第2空选填“大于”、“等于”或“小于”，水的比热容4.2×103J/（ kg ·℃）]

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