试题详情
单项选择题You can increase the life of your ai-conditioner by performing simple,routine cleaning ______in accordance with the owner&'s manual.(手册) ( 章节：8 难度：4)

A、in reality

B、eyesight

C、procedues

D、implanted

  • C

  • 关注下方微信公众号，在线模考后查看

热门试题