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{{B}}Inventor of LED{{/B}} When Nick Holonyak set out to create a new kind of visible lighting using semiconductor alloys, his colleagues thought he was unrealistic. Today, his discovery of light-emitting diodes, or LEDs, are used in everything from DVDs to alarm clocks to airports. Dozens of his students have continued his work, developing lighting used in traffic lights and other everyday technology. On April 23, 2004, Holonyak received the $,500,000 Lemelson-MIT Prize at a ceremony in Washington. This marks the 10th year that the Lemelson-MIT Program at the Massachusetts Institute of Technology (MIT) has given the award to prominent inventors. "Anytime you get an award, big or little, it’s always a surprise," Holonyak said. Holonyak, 75, was [单选题]进行地面10kV配电设备部分停电的工作，人员工作时距设备小于（ ）m安全距离以内的未停电设备，应增设临时围栏。临时围栏与带电部分的距离，不准小于0.35m。
A.0.7 B.1 C.1.2 D.1.5 [单选题]产褥病率表现为
A.产后 1 个月内每 4 小时测 1 次体温, 体温≥38℃,白细胞 1.2×109/L 以上 B.产后 24 小时至 10 天内,每日测量涔温 4 次, 间隔时间4 小时,有 2 次体温≥38℃ C.分娩 24 小时以后至 30 天内, 体温超过 38℃ D.分娩 30 天后,体温超过 38℃ E.分娩后 10 天, 体温 38~40℃,阴道持续流血及脓性分泌物,有恶臭 [单选题] 在机上无犹太教餐的情况下,( )不可以提供给犹太教乘客
A.罐装鱼 B.面包 C.龙虾 D.沙拉 [判断题][T]ABK004431
筛板塔的主要缺点是:筛孔易堵塞,操作弹性小,塔的安装质量要求高。( ) A.正确 B.错误 [判断题]轻纺产品，顾名思义就是玩具与纺织品两大类生活资料产品。 ( )
[单选题]彻底防止病毒入侵的方法是;( )
A.每天检查磁盘有无病毒 B.定期清除磁盘中的病毒 C.不自己编制程序 D.还没有研制出来 [多选题]多选题考卷题下述( )条件下,必须重新办理作业许可证。
A.工作时间超出了许可证有效时限 B.工作地点发生了改变 C.工作内容发生了改变 D.许可证需要延期 E.许可证被取消 我来回答: 提交
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