[判断题]能氧化其它物质而本身被还原的物质称氧化剂。-我要搜题网

Everyone of us lives and works on a small part of the earth’s surface, moves in a small circle, and of these acquaintances knows only a few intimately. Of any public event that has wide effects we see at best only a phase and an aspect. This is true that the eminent insiders, who draft treaties, make laws, and issue orders, are like those who have treaties framed on them, laws promulgated to them, orders given at them. Inevitably our opinions cover a bigger space, a longer reach of time, many things, that we can directly observe. So they have to be pieced together out of what others have reported and what we can imagine. Yet even the eyewitness does not bring back a naive picture of the scene. For experience seems to show that he himself brings something to the scene which later he takes away from it, that oftener than not what he imagines to be the account of an event is really a transfiguration of it. Few facts in consciousness seem to be merely given. Most facts in consc
A. collects preferred materials in order to create.
B. selects with the intention to create new ideas.
C. selects and creates unconsciously and simultaneously.
D. selects and creates objects deliberately.

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[单选题][T]BC013511
防喷管应用63.5㎜的油管制作，长度为（）m。
A.2.0～2.3
B.2.3～2.5
C.2.5～2.8
D.2.8～3.0

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[判断题] 碳当量为0.60%时,工件的焊前预热温度为250℃以上。
A.正确
B.错误

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[单项选择]4in油管的外径为（）。
A. 10.16mm
B. 101.6mm
C. 40mm
D. 80mm

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[单项选择]{{I}} Questions 11-13 are based on the following talk about napping, you now have 15 seconds to read questions 11-13.{{/I}}According to the speaker, the sleep pattern of a baby is determined by
A. its genes.
B. its habit.
C. its mental state.
D. its physical condition.

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[多选题]工程启动委员会下设的工程验收组，负责工程启动验收期间的验收工作。工程验收组由（）、科信、档案、设计、施工、调试、监理、质量监督等单位（部门）的代表组成。［国网（基建/3）188—2019《国家电网有限公司输变电工程验收管理办法》第三十八条］
A.项目法人
B.建设管理
C.运维检修
D.物资及财务

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[单选题]企业道路交通事故死亡人数,是指道路运输企业在目标责任期内,企业所有营运车辆发生的道路交通事故自发生之日起( )日内死亡的人数。
A.3
B.7
C.10
D.15

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[单选题]分泌雄激素的细胞是
A.睾丸生精细胞
B.睾丸支持细胞
C.睾丸间质细胞
D.精原细胞
E.精子细胞

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[简答题]简述YJ17卷烟机均墨辊的调整要求和方法。

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[判断题]集中联锁的道岔所使用的手摇把数量由车务与电务共同商定，指定存放地点，车站保管。
A.正确
B.错误

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[单项选择]（）下列不能引起裂解炉出口温度波动的因素是。
A. 原料油压力波动
B. 稀释蒸汽流量不稳
C. 裂解炉型不同
D. 燃料压力不稳

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[判断题]电力线路的经济指标一般以电压损失ΔU%、有功功率损失ΔP、无功功率损失ΔQ、电能损失ΔW以及线损率ΔP%的大小来表示，这些指标越高则电力线路运行越经济。（）
A.正确
B.错误