单选题
Which of the followings is the main idea of the passage?
【正确答案】
D
【答案解析】[解析] 本题考查主旨大意。这篇短文主要介绍了美国一位将毕生奉献给科学和教育的人Jeol Hiderbrund博士。答案可以从第一段看出:当Jeol Hiderbrand博土101岁去世时,他已经结婚七十五年了,“In his own way,Dr.Jeol Hiderbrand was certainly a genius”,最后一段也提供了这方面的线索:“he could have such ageless energy and vigor”。[A]和[C]太泛,太宽;[B]仅指他对教育的贡献,太窄;均不是正确答案。