题目

硅的氧化物及硅酸盐构成了地壳中大部分的岩石、沙子和土壤。在无机非金属材料中，硅一直扮演着主角。下面几种物质中含有硅单质的是 A．                 B．                 C．                 D． 答案：C 解析: 略  ______ , his idea was accepted by all the people at the meeting . A.Strange as might it sound B. As it might sound strange C.As strange it might sound D.Strange as it might sound