第17题: [单项选择]All the following problems are implied as possible causes of campus suicide incidents EXCEPT ______. A. poor academic results B. failing to get proper sleep C. lack of family concern D. family history of mental illness 参考答案:C 答案解析:[定位] 最后一段。
[解析] 该段提到造成精神疾病的多种原因。第1句中的generally predisposed为先天具有之意,与选项D的内容吻合。选项A和B分别对应文中破折号前后。