问题
多项选择题
湿式报警阀组的安装应符合下列要求（）。
A、应使报警阀前后的管道中能顺利充满水
B、压力波动时，水力警铃不应发生误报警
C、报警水流通路上的过滤器应安装在延迟器前，且便于排渣操作的位置
D、气源设备的安装应符合设计要求和国家现行有关标准的规定
答案
参考答案：A, B, C
搜题请搜索小程序“爱下问搜题”
湿式报警阀组的安装应符合下列要求（）。
A、应使报警阀前后的管道中能顺利充满水
B、压力波动时，水力警铃不应发生误报警
C、报警水流通路上的过滤器应安装在延迟器前，且便于排渣操作的位置
D、气源设备的安装应符合设计要求和国家现行有关标准的规定
参考答案：A, B, C
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| In the past, when students graduated (毕业) from college and got jobs, only some of them went on with their study. But today, lifelong (终生的) learning is becoming more and more common. Lucy, who is forty, teaches physics at a college in Boston. "Next term, I'll teach some of my classes by using the Internet. This is the way of teaching that I've never used before,"says Lucy. "These days, I am taking a class to learn about the computer. If not, I will lose my job." At the same time, Lucy's seventy-year-old parents, who live in New York, are taking an art class on line." We love this subject," says her father,"and we learn it to enjoy ourselves. You see we can study with people all over the world. How fun it is to learn like this!" | ||||||||||||||||||
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