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把一个长、宽、高分别为9厘米、7厘米、3厘米的长方体铁块和一块棱长是5厘米的正方体铁块,熔铸成一个底面直径是10厘米的圆锥形铁块,圆锥形铁块的多少厘米?(π取3.14)
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参考答案:
举一反三
【简答题】Translate the following phrases into Chinese : create extra time control your own actions and what you are going to do with the time you have find yourself turning in homework late work on your time m...
【单选题】Excel 2010中计算一组数据之和的函数是______。
A.
SUM()
B.
MAX()
C.
MIN()
D.
AVERAGE()
【判断题】10 If you are still facing daily money worries and concerns about future finances, you should trim your needs and set your priorities
A.
正确
B.
错误
【判断题】If you are still facing daily money worries and concerns about future finances, you should trim you needs and set your priorities.
A.
正确
B.
错误
【判断题】原子吸收分光光度计分光过程在试样原子化之前进行 。
A.
正确
B.
错误
【单选题】Which of the following is the author's advice to the reader?
A.
Although too much attention to details may be costly, they should not be overlooked.
B.
Don't forget details when drawing pictures.
C.
Be ware of the importance of a task before undertaking it.
D.
Careless applicants are not to be trusted.
【单选题】对文意概括与分析不当的一项是( )
A.
首段交待陶渊明归隐田园的真正原因——“心为形役”,即心志被形体役使,做了许多违心悖情而又无可奈何的事情,想做的却不能做,不想做的却又不能不做,为下文抒写弃官归田的决心作铺垫。
B.
第二段描写宁静淡泊的日常生活、温馨朴实的家乡亲情和清新素雅的自然景观令诗人留连忘返、自得其乐,同时也通过对夕阳晚照、苍松兀立、引壶自酌等场景的描写,揭示出诗人与世隔绝、独立自足的清高和冷寂。
C.
第三段描写陶渊明的田园之乐,字里行间体现出诗人躬耕陇亩的舒心惬意,游山玩水的幽雅闲适和琴书相伴、情话相谈的融洽欢快。大自然万物复苏,生机勃发的景象,促使诗人欢欣鼓舞,诗性大发。
D.
第四段抒发了诗人委心乘化、乐天安命的情志。诗人崇尚自然,追求自由,返朴归真,但在“聊乘化以归尽,乐夫天命复奚疑?”的感叹和接二连三的反问中却隐含着诗人去留难定、取舍难决的矛盾和苦闷。
【单选题】本讲提到,( )是人类社会最为普遍的奉献精神。
A.
爱岗敬业
B.
助人为乐
C.
默默奉献
D.
理解认同
【判断题】树枝必须包含有顶点和链路。
A.
正确
B.
错误
【单选题】Which of the following is the author's advice to the reader?
A.
Although too much attention to details may be costly, they should not be overlooked.
B.
Don't forget details when drawing pictures.
C.
Be aware of the importance of a task before undertaking it.
D.
Careless applicants are not to be trusted.
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