第28题: [单项选择]People innately ______ for superiority over their peers although it sometimes takes the form of an exaggerated lust for power. A. strive B. ascertain C. justify D. adhere 参考答案:A 答案解析:strive for something奋斗,争取;ascertain whether/what/how/that确定,探知;justify(doing)something证明……是正当的;adher