将饱和空气在恒压下冷却,温度由 t 1 降至 t 2 ,其相对湿度( ),绝对湿度( ),露点( )。 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace> A . 增加、减小、不变 B . 不变、减小、减小 C . 降低、不变、不变 D . 不确定
【单选题】Part A Directions: You will hear 10 short dialogues. For each dialogue, there is one question and four possible answers. Choose the correct answer ― A, B, C or D, and mark it in your test booklet. You...