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The word 'diversity' in the last paragraph means
D.distinction.

A.variety.
B.makeup.
C.disorder.

【参考答案】

A
解析:最后一段第二、三句话表明,任何蜜蜂群体都存在多种不同基因,一个群体中存在的基因种类越多,这个群体基因多样性的程度就越高。结合第三句话的前后部分,可以断定 diversity的意思是A。
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A.'
It
B.6
C.2
D.(61),
E.
As
F.'
A.under-nutrition
B.under-height
C.overweight