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【单选题】
我国科学家将石墨烯(由石墨剥离的层状结构)和碳纳米管经低温脱水处理，获得了一种“最轻材料”。该材料具有超强的吸附能力，且有望成为理想的储能保温、催化载体和吸音材料。下列有关说法正确的是(　　)
A.
石墨烯属于有机物
B.
该材料吸油过程为物理变化
C.
碳纳米管是碳的一种同位素
D.
碳纳米管属于胶体分散系
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有形实体
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查看完整题目与答案
【简答题】对象是人们要研究的任何事物,主要的对象类型有
查看完整题目与答案
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