某研究性学习小组为验证质量守恒定律设计了右图所示的装置放在石棉�上的仪器是玻璃钟罩进行实验.下列说法不正确的是a玻璃钟罩的作用是既便于 Template




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tomski某研究性学习小组为验证质量守恒定律设计了右图所示的装置放在石棉�上的仪器是玻璃钟罩进行实验.下列说法不正确的是a玻璃钟罩的作用是既便于 coloring