用符号表示煤的工业分析和元素分析组成。两者的关系如何?

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问题:

用符号表示煤的工业分析和元素分析组成。两者的关系如何?

考点:燃料公司燃料管理考试燃料彩制样组长、彩制样工考试燃料彩制样组长、彩制样工考试题库
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你能在每题括号里填上合适的不同质数吗?试试看.

24=______+______=______+______

42=______+______=______+______=______+______.

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2012年7月27日~8月12日,第30届夏季奥运会在英国伦敦举行。读图,回答第题。

小题1:在7、8月份,伦敦比北京

A.气温高,日较差大

B.风小雾大,降水多

C.正午太阳高度角小

D.日出晚,昼短夜长小题2:英国

A.地处亚欧板块和美洲板块交界处

B.西部海岸线曲折,珊瑚礁发育好

C.地形以高原为主,地势西高东低

D.多数河流短,含沙少,无结冰期小题3:途经该区域的洋流

A.能使北美洲至欧洲的海轮航行速度加快

B.造成欧洲西部地区气温升高、湿度降低

C.进入到北冰洋海域,使当地能见度变好

D.在与其他洋流交汇的海域不易形成渔场

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异步电动机起动时,起动电流与额定电流的比值IQ/IN=()

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何谓针织?何谓纬编针织物?何谓经编针织物?

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We once had a poster competition in our fifth grade art class.

"You could win prizes," our teacher told us as she wrote the poster information on the blackboard. She passed out sheets of construction paper while continuing. "The first prize is ten dollars. You just have to make sure that the words on the blackboard appear somewhere on your poster. "

We studied the board critically. Some of us looked with one eye and held up certain colors against the blackboard rocking the sheets to the right or left while we conjured up our designs. Others twisted their hair around their fingers or chewed their erasers while deep in thought. We had plans for that ten-dollar grand prize, each and every one of us. I’m going to spend mine on candies one hopeful would announce while another practiced looking serious wise and rich.

Everyone in the class made a poster. Some of us used parts of those fancy paper napkins, while others used nothing but colored construction paper. Some of us used big designs and some of us preferred to gather our art tidily down in one comer of our poster and let the space draw the viewer’s attention to it. Some of us would wander past the good students’ desks and then return to our own projects with a growing sense of hopelessness. It was yet another grown up trick of the sort they seemed especially fond of making all of us believe we had a fair chance and then always—always—rewarding the same old winners.

I believe I drew a sailboat, but I can’t say that with any certainty. I made it. I admired it. I determined it to be the very best of all of the posters I had seen and then I turned it in.

Minutes passed.

No one came along to give me the grand prize and then someone distracted me and I probably never would have thought about that poster again.

I was still sitting at my desk thinking, what poster When the teacher gave me an envelope with a ten-dollar bill in it and everyone in the class applauded for me.

After the teacher’s words, all the students in the class ().

A.looked very serious

B.thought they would be rich

C.began to think about their designs

D.began to play games

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