题目

阅读理解 Bursting into the classroom from recess, 15 children take their seats and face the woman they know as Ms. Yang. “What day is it today?” she asks, in Mandarin Chinese. “Confucius' birthday!” the fifth graders shout in Mandarin. “Why do we celebrate Confucius' birthday?” “Because he's the greatest teacher in the history of China!” exclaims a brown-haired girl. She is speaking Mandarin. English is rarely heard in Lisa Yang's class at the Chinese American International School(CAIS), despite the fact that few students are native speakers of Mandarin. The United States i卢梭是法国启蒙运动时期的思想家，他宣称“人生而是自由的，可是现在它却处处带着镣铐。”他的主要代表作是：（    ） A．《百科全书》      B．《社会契约论》 C．《天真汉》       D．《哲学通信》