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

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。参考译文：由于岩石内矿物质的组成结构经常受岩石结晶时的条件状况，因此这些矿物质的组成结构在分析岩石的地理历史中能起到重要作用。

Kết quả (Anh) 1:

Answer: b analysis: test is through the use of the word, should be added after the of the, qualifying for it refers to the composition of the rock behind the crystallization;Because this kind of problem is difficult, we recommend using a process of elimination. Text: due to the composition of the minerals in the rock structure has often been rock crystallization conditions, analysis of the composition of the minerals in rocks can play an important role in the history of geography.

Kết quả (Anh) 2:

The answer: B Analysis: penetration test is to use a given word should be added after of the, defined as a rock of crystallization; Because behind it refers to the composition; such a title is always difficult, it is recommended to do with exclusion. TEXT: As the composition structure within the rock minerals are often subject to the conditions when the status of rock crystal, so the composition of the structure of these minerals in the rocks geographic analysis can play an important role in history.

Kết quả (Anh) 3:

B analysis: the test is the use of the of, should be added after the the, crystallization it, Because behind the the refers to the generation of composition; this has been a difficult problem, it is recommended to use the exclusion method. As the mineral composition of rocks is often influenced by the conditions in which the rock is crystallized, the structure of these minerals can play an important role in the analysis of the history of the rock.