当锅炉出口蒸汽压力受负荷干扰变化时,热负荷控制系统通过调节()量使其稳定。A.燃料

题型:单项选择题

问题:

当锅炉出口蒸汽压力受负荷干扰变化时,热负荷控制系统通过调节()量使其稳定。

A.燃料

B.送风

C.给水

D.蒸汽

考点:热力司炉工考试中级热力司炉工中级热力司炉工题库
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各级政府对同级公安机关的领导,是通过行政命令保证党的路线、方针、政策、重大决策的切实贯彻实施。 ( )

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单词拼写(共10小题,每题1分,共10分)

小题1:1.  Laughter has an effect on most of the major body systems and functions. These effects have been _______ (认可) by scientists.

小题2:2.  I wanted to _____(提取) 40 dollars from the bank account, but I was so forgetful that I couldn’t remember how it was spelled.

小题3:The paintings of the impressionists were not as _____ (详细的) as those of earlier painters.

小题4:If a person had an unusual physical ______ (特征), it became part of his name.

小题5:Some poems tell a story while others try to c     (表达) certain emotions.

小题6:One can only have deep _______(同情) for these once-living creatures.

小题7:But as well as having meaning from the characters, Chinese names can also have  s   (重要性) according to their sounds..

小题8:When the volcano erupted, the earth began to t      (颤抖).

小题9:Children who can see and hear learn language easily but for Helen, it was a _____(逐渐的) and sometimes painful process.

小题10:Heavy snow last winter caused long _____(延误) at the airport.

题型:单项选择题

国家对公文的格式有具体的要求,其特点有( )。

A.结构完整性

B.规范性

C.相对确定性

D.灵活性

题型:单项选择题

加工硬化是如何形成的?

题型:单项选择题

水泵密封环的作用是减少水泵的水力损失、提高水泵的效率。。

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