填空题 (Low-level) cumulus clouds, mid-level altostratus clouds, and high-altitude cirrus clouds all (conveys) (information about) (their) atmospheric realms.
  • A. Low-level
  • B. conveys
  • C. information about
  • D. their


  • 1、
【正确答案】 1、B    
【答案解析】这道题目的考点是主谓一致。在该题目中主语为几个并列的复数名词，故谓语动词应用复数形式，应将conveys改为convey。