第12题: [单项选择]It can be inferred that non-human primates ______. A. are mostly left-handed B. are mostly right-handed C. are equally divided between right-handers and left-handers D. are good at using both hands 参考答案:C 答案解析:文章第二段提到了“model-drawn from observation of non-human primates…the genetic make-up of individuals incli