- 试题详情及答案解析
- But if a treatment ________ delayed the disease by seven years were to be available, the number of sufferers would drop by 40% by the middle of the century.
- 答案：D
- 试题分析：考查定语从句。A.在哪；B…时候；C.为什么；D.无实际意义。句意：要不是把这个疾病推迟了七年的治疗方法是可用的，那么在中世纪时受害者会减少40%。that在从句中充当主语，无实际意义，仅指代treatment。故选D
考点：考查定语从句