【简答题】A -TiO 2 (锐铁矿)与R—TiO 2 (金红石:)混合物衍射花样中两相最强线强度比I A -TiO2 /I R-TO2 =1.5。试用参比强度法计算两相各自的质量分数。 (通过查阅pdf卡片得知A-TiO 2 用的是d=0.351nm的线条, K A =4.3 ,R-TiO 2 用的是d=0.325nm的线条, K R =3.4 )
【单选题】Newspapers must not only provide for the reader the facts, pure,______objectively selected facts but also supply interpretation, the meaning of the facts.