填空题
Many men and women have long bought into the idea that there are " male" and " female" brains, believing that explains just about every difference between the sexes. A new study【K1】c______ that belief, questioning whether brains really can be distinguished by gender. In the study, Tel Aviv University researchers【K2】s______for sex differences throughout the entire human brain. And what did they find? Not much. Rather than【K3】c______ (把......归类) brains as "male" or "female, " research shows that brains fall into a wide range, with most people falling right in the middle. Daphna Joel, who led the study, said her research found that while there are some gender-based【K4】s______ (相似之处) , many different types of brain can't always be distinguished by gender. While the "average" male and "average" female brains were【K5】s______different, you couldn't tell it by looking at individual brain scans. Only a small【K6】p______of people had "all-male" or "all-female" characteristics. Larry Cahill, an American neuroscientist (神经科学家) , said the study is an important addition to a growing body of research questioning【K7】t ______ beliefs about gender and brain function. But he cautioned against concluding from this study that all brains are the same, 【K8】r______of gender. " There's a mountain of evidence【K9】p______ the importance of sex influences at all levels of mammalian brain function, " he told The Seattle Times. If anything, he said, the study【K10】s______ that gender plays a very important role in the brain "even when we are not clear exactly how. "