What is an advantage of using foam in fire fighting?()
A. It is MOST effective on very hot oil fires where the temperatures of the liquid exceed 100°C (212°F)
B. Most foams can be used with dry chemicals to attack a fire by two methods
C. Foam is effective on combustible metal fires
D. Foam can be made with seawater or fresh water
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“三潭印月”中的三潭是石香炉的三个脚。()
A. 正确
B. 错误
财产清查按其时间不同,可分为定期清查和局部清查。
A. 正确
B. 错误
仙林寺坐落在杭州,而山门却孤零零地造在海宁。()
A. 正确
B. 错误
建筑物外部竖直敷设的金属管道的顶端和底端应与防雷装置连接,对于建筑物内部靠近外墙的竖直金属管道并不要求应与防雷装置连接。
A. 正确
B. 错误