Having had her as a professor and an adviser, I can tell you that she is an_____force who pushes her students to excel far beyond their own expectations.
考查形容词辨析。A选项inspirational“启发灵感的,鼓舞人心的”;B选项educational“教育的,有教育意义的”;C选项excessive“过度的,极度的”;D选项instantaneous“立即的,立刻的”。根据pushes her students to excel far beyond their own expectations可知A选项符合语义。句意:有她作为教授和顾问,我可以告诉你,她有一种鼓舞人心的力量,推动她的学生超越自己的期望。