问题
多项选择题
水灭火的局限有（）。
A、不能用水扑救“遇水燃烧物质”的火灾
B、在一般情况下，不能用水扑救可燃粉尘聚集处的火灾
C、某些高温生产设备装置着火时，不宜用直流水扑救
D、贮存大量浓硫酸、浓硝酸、盐酸等场所发生火灾时，不能用直流水扑救
E、轻于水且不溶于水的可燃液体火灾不能用直流水扑救
答案
参考答案：A, B, C, D, E
搜题请搜索小程序“爱下问搜题”
水灭火的局限有（）。
A、不能用水扑救“遇水燃烧物质”的火灾
B、在一般情况下，不能用水扑救可燃粉尘聚集处的火灾
C、某些高温生产设备装置着火时，不宜用直流水扑救
D、贮存大量浓硫酸、浓硝酸、盐酸等场所发生火灾时，不能用直流水扑救
E、轻于水且不溶于水的可燃液体火灾不能用直流水扑救
参考答案：A, B, C, D, E
阅读下面短文，在表格内的空白处填入合适的答案（每格限填一词）。 Why you should think big If you have something valuable in mind, a service to offer, or an idea to develop, then you present it to everyone to increase its scope(范围). Why not make full use of it? The fact is, when you have a strong enough vision(远见), you may have the courage. And then you simply have to pursue it, however crazy it might seem to others. Remember that everything starts small Rome wasn’t built in a day. Everything starts small. Scientists say that everything in the universe came from a smaller unit than you can possibly imagine. So it doesn’t matter where you are at present, because from small beginnings come great things. Think bigger by enlisting(争取) others To think big, you need to see yourself as a small part of a greater whole. Enlist people who are better than you. If you’re not the most organized person, don’t just be unhappy about it; find someone who is better. Big thinkers know their personal limitations(局限性). Gather people around you who can do what you can’t do to make sure your dream grows. Think big by focusing on future regrets(遗憾) There is an old saying, “We regret not the things we did do, but the things we didn’t.” You’ll never know how far it could go unless you see how far you can take something. If you have big plans, just close your eyes. And strongly imagine how regretful you will be if you don’t try or attempt properly. Feel that it is your human duty to think big When something is probably a real service to mankind, then it is a human duty to think and act big. Even if you don’t succeed at last, it is still valuable to think big.
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