化学主要研究物质的_________、__________、___________以及_______________。-九年级化学

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• 学习化学能让我们更好的认识生活和世界。下列说法中，正确的是[]A．天然果汁中不含任何化学物质B．化学的研究对象是实验室中的化学药品C．化学不能够根据人们的需要创造自然界不-九年级化学
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• 下列关于“化学”的认识不正确的是[]A．化学能够创造自然界不存在的新物质B．化学能够为人类提供新能源C．化学在环境保护中起重要的作用D．化学的发展必然带来人类生存环境的恶化-九年级化学
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