单选题 Professor Baker is a co-worker of Professor Ayers.
  • A. an advisor
  • B. a disciple
  • C. a rival
  • D. a colleague


【正确答案】 D
【答案解析】co-worker=colleague“同事”；advisor“顾问”；disciple“信徒”；rival“对手”。句意：贝克教授是阿耶兹教授的同事。