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【判断题】
装配单元在用到的电磁阀是单电控的。( )A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】可以提高查准率的检索技术有( )。
A.
AND、NOT、截词检索
B.
AND、OR、截词检索
C.
NOT、加权检索、限定检索
D.
加权检索、限定检索、扩展检索
E.
精确检索、加权检索、智能检索
【简答题】男性,32岁,多年来经常咳嗽,晨起或晚上躺下时加剧,咳出多量脓痰后好转,已经反复咯血多次,有时还出现高热,咳嗽时加剧,痰量增多,呈黄脓痰等。分析:(1) 为明确诊断,宜选用什么辅助检查?(2)该患者护理问题是什么?(3)如何护理?
【简答题】C In 2004 US army research agency DARPA challenged engineers to try to build a self-driving car. Though the course had only barriers and no other traffic, none of the vehicles reached the end. ...
【简答题】Later, engineers _______(manage) to construct railways in a system of deep tunnels ( 隧道) , which became known to the Tube. This development was only possible with the introduction of electric-powered ...
【单选题】A pair of synthetic gene circuits that count events — a long-stated goal for circuit engineers — was reported in _______. For one of these counter circuits, recombinase-mediated DNA rearrangement was ...
A.
2004
B.
2006
C.
2009
D.
2012
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