【多选题】当空调系统管路中有湿气时,可能会导致( )。(III)
【简答题】What's your favorite season? And tell me reasons.
【单选题】What's your favorite season?
【简答题】请根据句子前后内容选择合适的形式The Stars and Stripes ______their national emblem.A. is B. are C. is or are
【单选题】What's your favourite season?