第33题: [单项选择]Psychologists have errantly mounted an offensive against what they describe as nastiness to ward students by educators. A. arbitrariness B. unpleasantness C. severity D. aloofness 参考答案:B 答案解析:arbitrariness霸道,恣意。unpleasantness煞风景的事,不愉快的事。severity严肃,严格。aloofness超然的态度。nastiness污秽,不洁。