题目

36. We were all _____ when we heard the _____ news that we football team has won in the match. A. excited; excited                             B. exciting; exciting      C. excited; exciting                            D. exciting; excited 答案：C 具有手性碳原子的物质往往具有旋光性，存在对映异构体，下列化合物中存在对映异构体的是(　　) A．C2H5CH===CHCH(CH3)—CH===CHC2H5 B．2­甲基丁烷 C．甲酸 D．C6H5CH(CH3)CHO