化学家们正在探索利用纳米技术制造出具有特定功能的产品,如纳米

化学家们正在探索利用纳米技术制造出具有特定功能的产品,如纳米TiO2可制成性能优越的隐身型涂料,用于导弹等武器装备上。TiO2Ti元素的化合价为

A+2    B+3    C+4    D+6

答案

C

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