问题
单项选择题
对于t2火灾的类型,国际标准《火灾安全工程第4部分:设定火灾场景和设定火灾的选择》ISO/TS16733,根据火灾增长系数α的值,定义了4种标准t2火灾:慢速火、中速火、快速火和超快速火,它们分别在一定时间内可达到1MW的火灾规模,其中中速火达到1MW的火灾规模所需时间为()。
A.600s
B.300s
C.150s
D.75s
答案
参考答案:B
对于t2火灾的类型,国际标准《火灾安全工程第4部分:设定火灾场景和设定火灾的选择》ISO/TS16733,根据火灾增长系数α的值,定义了4种标准t2火灾:慢速火、中速火、快速火和超快速火,它们分别在一定时间内可达到1MW的火灾规模,其中中速火达到1MW的火灾规模所需时间为()。
A.600s
B.300s
C.150s
D.75s
参考答案:B
A man and his girlfriend were married.All of their friends and family came to partake in the festivities and celebrations.In the ceremony,everyone could tell the couple's ___ for each other was true. A few months later,the wife came to the husband with a ____,“I read in a magazine,a while ago,about how we can ____ our marriage,” she offered.“Each of us will write a list of the things that we find a bit ____ with the other person.Then,we can talk about how we can fix them together and make our lives ____.” The husband ____.So each of them went to a ____ room and thought of the things that annoyed them about the other.Then they thought about this question and wrote down what they ____. The next morning,they decided that they would ____ their lists. “I'll start,” offered the wife.She took out her list.It had many items on it,___ to fill 3 pages.In fact,as she started reading the list of the little annoyances,she noticed that ____ was starting to appear on her husband's face. “What's wrong?” she asked.“Nothing,” the husband replied,“____ reading your list.” The wife continued to read ____ she had read all three pages to her husband, “Now,you read your list and then we'll talk about the things on both of our lists,” she said ____. Quietly the husband stated,“I don't have anything on my list. I think that you are ____ the way that you are.You are lovely and wonderful and I wouldn't want to try and ____ anything about you.” The wife,____ by his honesty and the depth of his love for her and his ___ of her,turned her head and wept. In life,there are enough times when we are disappointed,___ and annoyed.We don't really have to go looking for them.We have a wonderful world that is full of beauty,light and promise.Why ____ time looking for the bad,disappointing or annoying when we can see the wonderful things before us?
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