单选题 She is very conscientious about her work.
  • A. worried
  • B. careful
  • C. anxious
  • D. nervous


【正确答案】 B
【答案解析】conscientious：认真的、谨慎的，和careful(细心的)意思相近；worried：发愁的、焦虑的；anxious；焦虑的、渴望的；nervous：神经性的、紧张的。