单选题 Chang'e was supposed to position all of its instruments to face the moon on November 18, a posture {{U}}facilitating{{/U}} its probing work.
  • A. precising
  • B. assisting
  • C. producing
  • D. twisting
【正确答案】 B
【答案解析】facilitate推动，帮助。assist帮助，援助。precise精确的。produce生产，制造。twist扭曲，拧。