寒冷、夏热冬冷和( )地区的住宅,西面应采取遮阳措施
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
严寒、寒冷和夏热冬冷地区外墙热桥部位,应按设计要求采取( )措施。
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