热门试题:
[判断题]几个作业组同时作业时，每一个作业组必须分别设置安全防护措施，必须指定专人向供电调度申请停电命令。（ ）
A.正确
B.错误
[简答题]碳钢分为几类？根据国家标准它们的编号有哪些？
[判断题]根据各勤务中队骑警警⼒配备,将骑警平均分为早、晚班两⼤组,每组根据早
晚班次安排巡区骑警、机动骑警,其中 4 警 4 协为巡区骑警,其余为机动骑警,
所有骑警依次轮值。
A.正确
B.错误
[多选题]关于ZD6转辙机遮断器的说法正确的是（ ）
A.在开盖或插入手摇把时，遮断器应能自动断开启动电路，
B.断开距离不小于2mm，
C.接点磨耗不超过2/3
D.不拨动管制肘，接点不得重新接触。
[单选题]根据出口信用保险条款的规定，投保短期出口信用保险的出口合同个必须同时具备的条件不包括（ ）。
A.付款条件为商业信用方式
B.信用期不超过180天
C.承保方式采取逐个出口合同协商承保的办法
D.出口产品全部或部分在国内生产或制造
[判断题]不宜在锅炉/窑炉调试、检修、维护、保养等非正常运行工况时期进入现场。
A.正确
B.错误
[单项选择]As a matter of fact, ______.
[单项选择]腹股沟深淋巴结位于（）。
A. 隐静脉裂孔
B. 腔隙韧带
C. 股静脉
D. 股管
E. 耻骨梳韧带
[多选题]煤与瓦斯突出的预兆有( )。
A.响煤炮
B.煤质变软
C.空气变冷，有时变热
D.出现雾气
[判断题]( ) S700K型电动转辙机检测杆随尖轨或心轨转换而移动,用来监督道岔在终端位置时的状态。
A.正确
B.错误
[多选题]潜水时,潜水员体温的变化取决于( )等多种因素。
A. 环境的温度
B. 呼吸介质
C. 运动水平
D. 是否有防护措施
[单项选择]下面哪项不是影响SRS带宽的因素？（）
A. UE最大功率，
B. 可支持探测UE的数量，
C. 从依靠信道状况的上行调度中获益所需的带宽，
D. SRS的带宽配置.
[单选题]某居民用户电能表常数3000imp/kWh，实际负荷为100W，测得该电能表发出2个脉冲的时间为22s，该表的误差是（ ）。
A.0.081
B.0.091
C.0.095
D.0.084
[单选题]接触网最高工作电压为（ ）kV。
A.25
B.29
C.27.5
D.20
[单项选择]螺纹车刀的刀尖圆弧不能太大，否则会使车出的三角螺纹底径太宽造成（）。
A. 螺纹环规通端旋进，止端不能进
B. 螺纹环规通端旋不进，止端旋进
C. 螺纹环规通端和止端都旋不进
D. 螺纹环规通端处止端都旋进
[单选题]RA的标志抗体为
A.抗CCP
B.抗Sm抗体
C.抗SSA抗体
D.抗RNP抗体
E.抗SSB抗体
[单选题]阿托品禁用于（ ）
A. 全身麻醉前给药
B. 青光眼
C. 胆绞痛
D. 遗尿症
[判断题]当机件具有对称平面时，以对称中心线为界，可以用半剖视图反映机件图样。
[不定项选择题]任脉的主治特点是
A.回阳、固脱、强壮作用
B.后头、肩胛病，神志病
C.中风、昏迷、热病、头面病
D.前头、口齿、咽喉病，胃肠病
E.肝、脾、肾病
[单项选择]项目施工技术风险应由承包商承担，是建设工程风险对策中的( )的具体运用。
A. 风险回避
B. 风险自留
C. 损失控制
D. 风险转移
[多选题]VCMe电源故障，所有指示灯不亮的处理方案()
A.确认VCMe电源输入正常
B.更换VCMe模块。
C.重新下载VCMe模块软件
D.重启列车控制和诊断系统。
E.略
F.略
[单选题]飞机升力的大小与空气密度的关系是
A.空气密度成正比
B.空气密度无关
C.空气密度成反比
[单项选择]紧键联接和较紧键联接，键的结构形式和受力情况（）
A. 都相同
B. 不相同
[单选题]CR400AF动车组轴箱弹簧及转向架组装轴箱弹簧更换中，新轴箱弹簧组成应与上下夹板处于组成状态，注意新弹簧与原弹簧自由高差应小于( )mm。
A.0.5
B.1
C.1.5
D.2
[判断题]通过停有车辆的线路时，严禁钻爬车底，可由车钩上跨越。
A.正确
B.错误
[单选题]( ),金融行动特别工作组(FATF)全会审议通过了中国第四轮反洗钱和反恐怖融资互评估报告。
A. 2017年10月
B. 2018年2月
C. 2019年2月
D. 2020年2月
[单项选择]群体的发展一般经历四个明显的阶段，它们是（）
A. 初创、动荡、有序、衰亡
B. 形成、动荡、规范、表现
C. 形成、有序、规范、成熟
D. 形成、动荡、规范、成熟
[单选题]以下哪些信息不属于信息报送的主要因素。
A.过火面积
B.燃烧物质
C.物业电话
D.人员伤亡情况
[单项选择]While forensic scientists commonly rely on fingerprints to help identify a
Line person, it is not possible to use the same kind of technology with other species
of mammals. Recently, however, a group of researchers from Tokyo developed a
device that allows them to identify individuals of the endangered Ganges River
(5) dolphin species. This underwater acoustic device measures the clicking sounds
produced by the creatures and helps with identification and tracking, since each
sound is as completely unique as a fingerprint.
Ganges River dolphins are rare in that, unlike the majority of their
counterparts, they live in rivers and lakes rather than oceans. The species is blind
(10) and uses clicks to send out sonar pulses for guidance and to find food. In the past
few decades, their numbers have decreased by 50 percent, because of fishing net
entanglement, human predation, pollution, construction, or a combination ofA. support the claim that an underwater acoustic device is helpful in identifying and tracking the Ganges River dolphin
B. suggest that, because of this blindness, the Ganges River dolphin survives only in rivers and lakes
C. challenge the claim that the species’ decline in numbers is due to fishing net entanglement, human predation, pollution, or construction
D. refute the claim that the Ganges River dolphin can in fact be identified and tracked by underwater acoustic devices
E. (E) lend credibility to the claim that the Ganges River dolphin is a rare species
[单项选择]
In the late years of the nineteenth century, "capital" and "labour" were enlarging and perfecting their rival organisations on modem lines. Many old firms was replaced by a limited liability company with a bureaucracy of salaried managers. The change met the technical requirements of the new age by engaging a large professional element and prevented the decline in efficiency that so commonly spoiled the fortunes of family firms in the second and third generation after the energetic founders. It was moreover a step away from individual initiative, towards collectivism and municipal and state-owned business. The railway companies, though still private business managed for the benefit of shareholders, were very unlike old family business. Meanwhile the great municipalities went into business to supply lighting, trams and other services to the taxpayers.
The growth of the limited liability company and municipal business had important consequences. Such l
A. some countries developed quickly because of the emergence of the limited liability company.
B. the tide of industralisation would wide benefited British shareholders greatly.
C. shareholders contributed a lot to the fast growth of the British economy.
D. the system of shareholding impaired the management of modem companies.
