第29题: [单项选择]Passage One A. Black doctors weren’t allowed to use medical equipment. B. Black doctors were hated by patients. C. Blacks weren’t allowed to do operations. D. No black doctors could operate on white patients. 参考答案:A 答案解析:[解析] Why didn’t Williams work at a hospital [解析] 短文谈到,Williams毕业后自己开诊所,因为当时芝加哥的医院不允许黑人医生