单选题 He displayed a complete lack of {{U}}courtesy{{/U}} and tact in dealing with his employer.
  • A. tenacity
  • B. curiosity
  • C. civility
  • D. hostility
【正确答案】 C
【答案解析】courtesy“礼貌，谦恭”；A．tenacity“坚韧”；B项curiosity“好奇心”；C项civility“礼貌，端庄”，与划线词近义；D项hostility“敌意”。