26. Because it is often dependent of the conditions of crystallization, the composition of the minerals in a rock can be important in determining the rock's geologic history.
答案:B
分析:考的是定贯词的使用,应在 of 后加 the,限定为岩石的crystallization;Because后面的it指代the composition;此类题一直是难点,建议用排除法做。
想问一下到底要不要加the。
谢谢le |