若作冷气不冷、出风量不足的系统维修时,优先考虑冷凝器阻塞及蒸发器阻塞是必须的。
参考答案:错
根据首字母或中文提示写出所缺单词的正确形式
小题1:The students have no time to play now. They are making p_______ for the next week’s exam.
小题2:Our foreign teacher speaks Chinese very f____________ as if he were Chinese..
小题3:Yesterday she was late again. The teacher required she e___________ to him the reason.
小题4:He asked me to keep him i____________ of the latest news.
小题5:He had to leave before the meeting was over because there was an __________(突发事件).
小题6:The village schools are in great need of ____________(有经验的) teachers.
小题7:She is studying American ____________ (文学) at Georgetown University at present.
小题8:In the competition every point __________.(重要)
在一些嘈杂的场所,经常看到一些用玻璃制作的电话间,其隔音效果很好,这是因为()。
A.声音在玻璃中不能传播
B.电话间内的声音传播介质——空气太少了
C.电话间内打电话者与电话间外人群的声音被玻璃反射了
D.电话间内打电话者与电话间外人群的声音被玻璃吸收了