i5T3.6智能车床的额定电源电压是多少?

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问题:

i5T3.6智能车床的额定电源电压是多少?

考点:沈阳机床设计研究院(i5普及性)知识竞赛沈阳机床设计研究院(i5普及性)知识竞赛题库
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胸膜炎血常规检查:白细胞总数增加,中性粒细胞比例()、核()移,淋巴细胞相对()。

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What is distance learning It means that you study on your own, at home or wherever suits you. Recently, the world famous Open University in the United Kingdom has designed a new style of distance learning, which is called (1) . The phrase "Open Learning" means you study (2) . You read course material, work on course activities, and write (3) . The word "Supported" means you have help (4) , the student services staff at regional centres, and centralized areas such as (5) . You can also contact other students through tutorials and (6) , the University’s online conferencing system, and events and clubs organized by (7) . Most distance learning courses use printed paper materials. They also include some (8) materials such as a CD, DVD or video. Many courses have a web site and an (9) . You’ll need access to a computer (10) to make use of these. The Open University can help its students buy a computer and (11) the cost of accessing the Internet.

With most distance learning courses, no (12) are required to study. of course, you have to be aged 18 when your course starts but there is no (13) . Currently the Open University has around (14) undergraduate and more than 30,000 postgraduate students, of which 10,000 have (15) . Nearly all students are studying (16) . About 70 per cent of undergraduate students are in (17) . More than 50,000 students (18) by their employers for their studies. Most distance learning courses (19) . Some of them are even available in other parts of the world. With over 25,000 of its students living outside the UK, the Open University is the (20) that offers distance learning throughout the world.

7()

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美国的NBA篮球赛非常精彩,吸引了众多观众.经常有这样的场面:在临终场0.1s的时候,运动员把球投出且准确命中,获得比赛的胜利。如果运动员投篮过程中对篮球做功为W,出手高度为h1,篮筐距地面高度为h2,球的质量为m,空气阻力不计,则篮球进筐时的动能为[ ]

A.W+mgh1-mgh2

B.W+mgh2-mgh1

C.mgh1+mgh2-W

D.mgh2-mgh1-W

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《高速铁路接触网运行维修规则》中规定:新产品试运行期一般不少于()。遇有产品质量缺陷危及安全时必须立即拆除,同时做好记录并通知研制单位。

A.6个月

B.9个月

C.12个月

D.15个月

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钻探接班时,要检查工作地点及其附近()的安全情况。

A.支架

B.煤壁

C.以上两者

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