岛状硅酸盐
参考答案:
硅酸盐类矿物按晶体结构特点划分的亚类之一。其配阴离子为单个的硅氧四面体〔SiO4〕4-。各硅氧四面体之间由金属离子相连而形成的硅酸盐矿物。
I still remember _____ to the Famen Temple and what I saw there. [ ]
A. to take
B. to be taken
C. taking
D. being taken
教学上怎样提高学生问题解决的能力?