单选题 She could fix the machine without referring to the instructions.
  • A. understanding
  • B. observing
  • C. consulting
  • D. obtaining


【正确答案】 C
【答案解析】[解析] refer to:参考,和consult(查阅)意思相近;understand:理解、领会;observe:注意到、观测;obtain:获得。