单选题 The conference explored the possibility of closer trade links.
  • A. rejected
  • B. investigated
  • C. proposed
  • D. postponed


【正确答案】 B
【答案解析】[解析] explore：探讨，勘探；reject：拒绝；investigate：调查，侦查；propose：提议，建议；postpone：推迟。此处explore和investigate的意义最为接近。