The curious youngster, the crack student who gets nothing (31) A’s in math and sciences, the bright and inventive whiz kid who frightens his or her schoolmates, sometimes becomes an inventor that the world will honor forever for devising an important machine, improving an old process, or making a major breakthrough (32) the search for the cure for some disease.
It is rare nowadays to see one person alone invent something entirely new and startling. More (33) a number of researchers are working (34) a problem that has been studied by others for some time; a pioneer has (35) the groundwork, probably, and his or her successors are building on it, step by step.
Scientists, engineers, and technicians are a competitive lot; they often have a clear idea (36) what is afoot in (37) others’ laboratories, and they do their (38) to beat their rivals to the final glorious discovery.
Some inventors are
| I’m seventeen. I had worked as a box
boy at a supermarket in Leangles. People came to the counter and you put things
in their bags for them and carried things to their cars. It was hard
work. While working, you wear a plate with your name on it. I once met someone I knew years ago. I remembered his name and said, "Mr. Castle, how are you" We talked about this and that. As he left, he said, "It was nice talking to you, Brett." I felt great, he remembered me. Then I looked down at my name plate. Oh no. He didn’t remember me at all, he just read the name plate. I wish I had put "Irving" down on my name plate. If he’d have said, "Oh yes, Irving, how could I forget you" I’d have been ready for him. There’s nothing personal here. The manager and everyone else who were a step above the box boys often shouted orders. One of these was: you cou A. customer only gave small tips B. some customers had strange ideas about tipping C. the store forbade the box boys to take tips D. he didn’t want to fight with the customers [单选题]先天性甲状腺功能减低症的患儿，在治疗刚开始时的随访频率为
A.1周1次 B.2周1次 C.1个月1次 D.不定期随访 E.半年1次 [简答题]蜂王浆如何贮存？
[判断题]信号微机监测系统模拟量输入板简称模入板。
A.正确 B.错误 [单选题]以下( )为多功能喷嘴的真空顶吹氧技术。
A.RH-O B.RH-OB C.RH-KTB D.RH-MFB [单选题]并行接口接口能将（ ）位数据位同时并行传送。
A.8 B.16 C.32 D.64 [单选题]关于债券，下列说法错误的是（ ）。
A.债券发行人包括中央政府、地方政府、金融机构、公司和企业 B.债券的发行由债券发行人负责 C.债券的承销由债券承销商负责 D.债务到期时债务人必须按时归还本金并支付约定的利息 [判断题]牵引旅客列车在全列起动后再加速。
A.正确 B.错误 [单选题]依据《中国南方电网有限责任公司电力安全工作规程》，二次回路通电或耐压试验前，应通知运行人员和有关人员，并派人到现场看守，检查二次回路及一次设备上确（）后，方可加压。
A.已可靠接地 B.绝缘隔离 C.无人工作 [单选题]铺设一标准25 m长60 kg／m钢轨，采用钢筋混凝土枕，每千米铺轨枕1 600根，接头轨枕间距为520mm，中部轨枕间距为( )。
A.630 mm B.630.7 mm C.635 mm D.635.5 mm [单选题]在蜂窝移动通信系统中，通常采用（）作为小区的形状。
A.圆形 B.正方形 C.正六边形 D.正八边形 [单选题]四轮平车应配置至少2根专用防溜绳，防溜绳长度（ ）。
A.2-3米 B.3-5米 C.4-6米 D.5-7米 [简答题]如何进行科学的体育教学评价?
[判断题]供电可靠率是反映供电系统对用户供电的可用性的指标。
[单选题]单选题】 在电气设备检修中,一个工作负责人不能同时执行多张工作票,工作票上所列的工作地点,以( )为限。
A. 运行设备 B. 规定面积 C. 一个电气连接部分 D. 规定设备 [多选题]大型活动场所应符合的要求是（）。
A.A、内部装修应尽量避免使用可燃或易燃材料 B.B、活动场所内部和外部的安全出口、疏散通道要满足人员高峰期疏散通行能力，否则应限定人数 C.C、建筑物内部火灾报警系统应完备好用 D.D、消防器材应按规定配备，定期维护 E.E、电气线路、用电设施要由电气工程人员进行设计和施工，严禁乱拉乱接和超负荷用电 [单选题]施工现场的电力系统（ ）利用大地作相线或零线。
A.允许 B.严禁 C.可以 D.不宜 [简答题]变频调速系统一般分为哪几类？
[判断题]在地面2m以上的高处及陡坡上作业，必须戴好安全帽.系好安全带或安全绳。( )
A.正确 B.错误 [单选题]《中共山东省委山东省人民政府关于深入推进安全生产领域改革发展的实施意见》（鲁发〔2018〕5号）提出：健全法规和标准体系,制定完善高危行业领域（）和强制性标准。
A..安全规程 B..技术规程 C.地方标准 [填空题]人是生活在一定的社会环境中的，他从一个“（）”发展成为一个“（）”，需要经历一系列的社会化过程。人的社会化过程是学习做人的重要环节。人所处的环境还必然有某种文化传统，我们还有一个引导幼儿接纳、认同自己的文化传统的任务。人对本民族的文化认同也是学习做人的重要环节。
[单选题]以下哪个为同一消费者单次可订购总量( )
A.40 B.50 C.51 D.70 [简答题]如何制定企业培训计划？
[单选题]起重机械( )至少应做一次全面技术检查。
A.每季度 B.每半年 C.每年 D.每两年 [填空题]29 龙华线道岔护轨平直段标准宽度为（ ）。
[单选题]医疗事故构成要件的主观方面是
A.间接故意 B.过失 C.意外事件 D.正当防卫 E.直接故意 [单项选择]办理完毕的文件才可能作为档案，这里的“办理完毕”是指（）.
A. 领导签完字 B. 文件失去了现实效用 C. 收发文登记完 D. 完成了文书处理程序 [单选题]步进电动机的( )与脉冲频率f成正比。
A.线位移或角位移 B.线位移或转速n C.转速n或线速度v D.转速n或角位移 [填空题]限鸣时，十、五、三、一车信号、停车、连挂、试拉、起动、推进等信号的回示信号，司机分别用（ ）及时回示
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