关于氮化硅陶瓷的叙述错误的是(    )A.它的硬度不如金属材料高

关于氮化硅陶瓷的叙述错误的是(    )

A.它的硬度不如金属材料高

B.氮化硅陶瓷同氧化铝陶瓷具有抗氧化的能力

C.氮化硅陶瓷受热冲击不易破碎

D.氮化硅陶瓷不与任何无机酸反应

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