防止煤尘爆炸的技术措施可分为（）。A、减尘 B、降尘 C、消除_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题多项选择题

防止煤尘爆炸的技术措施可分为（）。

A、减尘

B、降尘

C、消除落尘

D、防止煤尘引燃

答案

参考答案：A, B, C, D

选择题

下列化学实验操作，正确的是（　　）

A．用10mL的量筒量取7.82mL的水

B．将NaOH固体直接放在托盘天平上称量

C．用PH广泛试纸测得某地表水的pH为5.2

D．皮肤不慎沾到浓硫酸时，先用抹布擦拭，再用水冲洗，最后用碳酸氢钠溶液冲洗

完形填空

(2013·东北三省四市联合诊断考试)I had a bad habit of skipping to the last pages of a book.I just wanted to see how it ended ____ I was still in the middle of it. This habit ____ first my mom，then my friends, and ____ even my own daughter. Often my ____ wouldn't be limited just to the books I read but also to what others were ____ as well.Then one day my daughter told me in anger, “Dad, please just read a book one ___ at a time like everyone else！”
At times I didn't ___ this bad habit to just books either.I also tried to skip ahead in my own life and ____ out what to do months and even years from now ____ enjoying each day at present. Although I knew that the ____ of my life wasn't done yet and that I had many pages ___ to go, I still couldn't control my burning desire to write the ____ of it halfway through.Time and again, I would ____ jump ahead and try to solve every potential problem before it happened. Life，____，doesn't work like that.It loves to ____ us，and you never know what new problems, changes, or opportunities each new day will ____.
Recently when I found myself living in the ____ again，I felt a voice that gently told me I needed to “live one day at a time”. When I heard those words, I ____，turned the book of my life back to the ____ page, and thanked God for today.
Each of us has to ____ the book of life line by line，moment by moment and trust that our story will be brought to its perfect end.

A．confused　

C．delighted　

D．embarrassed

C．accidentally

B．misunderstanding

C．disappointment

D．disagreement

A．on the part of

D．on the basis of

A．feelings　

A．consciously　

C．foolishly　

C．therefore　

A．surprise　

A．exciting　

C．favorite　