冷、热水及冷却水系统与制冷机组、空调设备相贯通前，应对系统冲洗、排污，再循环试运行( 发布时间：2018-06-10 15:23 │ 来源：www.tikuol.com 题型：单项选择题 问题： 冷、热水及冷却水系统与制冷机组、空调设备相贯通前，应对系统冲洗、排污，再循环试运行( )以上且水质须正常。A．0.5hB．2hC．1天D．2天
题型：单项选择题 用方框中所给单词的适当形式填空，使短文完整正确。（每个单词限用一次）read, from, movies, festival, held, sound, action, special, as, show The Chicago International Children's Film Festival is the largest festival of films for children in North America.The 27th Chicago International Children's Film Festival will be _ l__ on October 22, 2010.Two hundred and twenty-five movies 2 _ forty countries will be on 3. There are many kinds of movies, like 4 movies, documentaries and comedies.Some movies are kids' works(作品).The 5 are all good and new. Every year, 25, 000 children, adults and educators from Chicago join the 6 . The kids are from three to sixteen years old. For kids at the age of three to five, they have 7 _ movies for them to see. They are known 8 "My first movies. " Professional actors will 9 the English subtitles (字幕) aloud for programs for kids eight years old and under. The __10__ from the film will be audible(听得见) while subtitles are read. The festival is at Facts Cinema.You can call 773 -281 - 9075 for other things. 查看答案