第19题: [单项选择]Why did people name the city Cambridge[A] Because there is a bridge over the Cam.[B] Because the river was very well-known.[C] Because there is a river named Granta. 参考答案:A 答案解析:[解析] 由第二段可知答案。
第20题: [单项选择]华-佛综合征是指 A. 肾功能衰竭 B. 肾上腺皮质功能衰竭 C. 肾上腺髓质功能衰竭 D. 垂体功能衰竭 E. 肺功能衰竭 参考答案:B