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【多选题】
关于顶棚描述正确的是()A.
顶棚分为直接顶棚和悬吊顶棚
B.
直接顶棚是在钢筋混凝土楼板或屋面板下直接喷刷涂料、抹灰或黏贴饰面材料而形成的顶棚
C.
抹灰顶棚抹灰所用的材料可以是水泥砂浆、混合砂浆或者纸筋灰等。
D.
悬吊顶棚简称吊顶，悬吊顶棚可以隐藏不平整的结构底面和结构底面的设备管线。
E.
吊筋的长度可以调整，以适应吊顶的高度变化，满足一定的艺术要求。
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皮皮学刷刷变学霸
举一反三
【简答题】附睾位于睾丸的后外侧,包括____、____、____三部分。
【简答题】在VB中工程文件的扩展名是 ________ ____,窗体文件的扩展名是____ ____ ____,标准模块文件的扩展名是____。
【单选题】How can a cost leader use e-business to reduce costs? A) It could provide rapid online responses to service requests. B) It could use Internet-based knowledge systems to shorten customer response time...
A.
It could provide rapid online responses to service requests.
B.
It could use Internet-based knowledge systems to shorten customer response times.
C.
It could automate purchasing and payment systems so that customers have detailed status reports.
D.
It could use Web-based inventory control systems that reduce storage costs.
【单选题】What did scientists find BIRR4 could do?
A.
It could change the cold cycle.
B.
It could strengthen the immune system.
C.
It could only treat a cold in the first stages.
D.
It could eliminate all possibilities of getting a cold.
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