问道阎魔能进化吗:Which one of the following materials is closest to diamond in hardness?

Which one of the following materials has the highest hardness? which of the following materials are composites (more than one)? Which one of the following materials has the highest modulus of elasticity? Which one of the following are the three basic types of static stresses Which one of the following comes closest to expressing the chemical composition of clay? You're ____ of the class. A.best B.top C.the top. Which one? Which one comes the first??? which is the right one? If the University must cancel one of the schools sports , which one should it be ? and why ? Which one of the following materials is closest to diamond in hardness?