In California, a lack of genetic variation in the Argentine ant has allowed the species to spread widely; due to their being so genetically similar to one another, the ants consider all their fellows to be a close relative and thus do not engage in the kind of fierce intercolony struggles that limits the spread of this species in its native Argentina.


due to their being so genetically similar to one another, the ants consider all their fellows to be a close relative and thus do not engage in the kind of fierce intercolony struggles that limits

due to its being so genetically similar the ant considers all its fellows to be a close relative and thus does not engage in the kind of fierce intercolony struggles that limit

because it is so genetically similar, the ant considers all its fellows to be close relatives and thus does not engage in the kind of fierce intercolony struggles that limits

because they are so genetically similar to one another, the ants consider all their fellows to be close relatives and thus do not engage in the kind of fierce intercolony struggles that limit

because of being so genetically similar to one another, the ants consider all their fellows to be a close relative and thus do not engage in the kind of fierce intercolony struggles that limits

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题目分析：
本题虽然划线部分比较长，但是难度不算大，考点较为单一。

选项分析：

A选项：最后的定语从句that limits the spread of this species in its native Argentina需改为that limit the spread of this species in its native Argentina。定语从句会就近修饰一个单复数搭配的名词。在逻辑上，限制传播的是复数名词fierce intercolony struggles，而不是单数名词kind。 kind是种类的意思，种类不会限制传播。另外， all their fellows和 a close relative不搭配。不能是所有它们的伙伴是一个近亲。

B选项：fellows和a close relative不搭配错误同(A)；similar在本选项中身后缺少one another，这会使得我们不知道similar的对象是谁。

C选项：similar身后缺少one another错误同(B)。

D选项：Correct. 本选项在语法和逻辑上均是正确的。

E选项：fellows和a close relative不搭配错误同(A)。

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