单选题 The two pharmaceutical companies collaborated in developing new drugs to ______ the pain of patients in the terminal stages of cancer.
  • A.alleviate
  • B.confront
  • C.insulate
  • D.terminate
【正确答案】 A
【答案解析】[解析] 各项的意思是：alleviate“减轻，缓解，缓和”；confront“勇敢地面对，正视”；insulate“使绝缘，使隔离”；terminate“结束；使终结”。根据句意判断，答案是A。