完形填空

categorizing ....as...把...分类为....

: Rather than offer evidence for categorizing brains as "male" or "female,"

并没有提供提供能够把大脑分类为“男性”或“女性”的证据.

a small percentage of people

少数比例的人

regardless of

不管

suggests 表明

the study suggests gender plays a very important role in the brain.

此项研究表明性别在大脑中起着很重要的作用

proving 证明...

there's a mountain of evidence proving the importance of sex influences at all levels of brain funcation.

有大量的证据证明性别对于各个层次的大脑功能都有着重要影响

slightly different  轻微的不同

challenges 挑战 对.....表示怀疑

A new study challenges that belief.

一项新研究对这一观点提出了挑战