如何保证真空箱的真空度及油温在规定的范围内?

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问题:

如何保证真空箱的真空度及油温在规定的范围内?

考点:电机氢冷值班员考试中级电机氢冷值班员中级电机氢冷值班员题库
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一堆煤有4吨,如果每天用去
1
4
,______天可以用完;如果每天用去
1
4
吨,______天可以用完.
题型:问答题 简答题

动物性食物可提供的主要营养素是()。

A、优质蛋白质 

B、碳水化合物 

C、维生素A、源 

D、纤维素

题型:问答题 简答题

骨关节外伤影像学检查中的最主要和首选方法()

A.X线平片

B.CT

C.MRI

D.同位素

E.超声

题型:问答题 简答题

The primary advantages of a Client/Server system arise from splitting the processing between the client system and the database server. Since the bulk of the database processing is done on the back-end, the speed of the DBMS isn’t tied to the speed of the (31) .

The major disadvantage of Client/Server system is the increased cost of (32) and support personnel who maintain the database server. There is also the issue of (33) with so many parts comprising the entire C/S system; Murphy’s Law can kick in-the more pieces that compose the system, the more pieces that can fail. It’s also harder to track down problems when the system (34) . And it can initially take longer to get all the components set up and working together. All this is compounded by the general lack of experience and expertise of potential support personnel and programmers, due to the relative newness of the technology. As C/S system become more common, this problem should abate.

Therefore the C/S system is more (35) .

(32)是()

A.administrative

B.bureaucratic

C.manager

D.official

题型:问答题 简答题

在双杠的支撑摆动动作中,应以()为轴摆动

A、手

B、肩

C、宽

D、腰

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