热门试题:
[判断题] 等离子弧会产生金属蒸气和氮化物等,对人体不利。
A.正确
B.错误
[单选题]ABG016 4 1 4
下列有机化合物的命名中,符合命名原则的是( )。
A.2-乙基丙烷
B.2-甲基-3-丁烯
C.3-甲基-1,4-二丁烯
D.2-乙基-1-丁烯
[判断题] ( )自动控制系统中.通常把“输出量能够以-定准确度随输入量变化而变化的系统”称之为随动系统.亦称伺服系统.
A.正确
B.错误
[单项选择]上消化道出血出现黑便时,出血量至少为()。
A. <5~7ml
B. <50~70ml
C. >50~70ml
D. >5~7ml
E. >250ml
[单选题](45253)曲线地段,客货分线的客运线路未被平衡过超高,困难情况下不应大于( )mm。(1.0分)
A.30
B.40
C.50
D.80
[填空题]当前工作区是3,要使工作区1成为当前工作区,应使用的命令为 【10】 。
[单选题] 2000kW及以上大容量的高压电机,普遍采用( )代替电流速断保护。
A.过负荷保护
B.低电压保护
C.纵差动保护
[单项选择]小王、小张、小李3人进行了多轮比赛,比赛按名次高低计分,得分均为正整数。多轮比赛结束后,小王得22分,小张和小李各得9分且小张在其中一轮比赛中获第一名。那么,三人共进行了多少轮比赛?()
A. 2
B. 3
C. 4
D. 5
[单选题]以维修费用最经济为中心,对设备各部件、各零件分别采取不同的维修方式称为( )。
A.定期维修
B.事后维修
C.预防维修
D.计划综合维修
[填空题]()天线的作用是用于机车电台接收卫星定位信号。
[单选题]列车规范(空调、非空调)
A.10
B.20
C.30
D.40
[多选题]无人机自主巡检业务功能按照( )的原则分区部署建设。
A.一级部署
B.省级部署
C.分布应用
D.多级应用
[单项选择]( )是经国务院批准,由海关所设置的或海关批准注册并监管的特定综合性对外开放经济区域。
A. 出口加工区
B. 边境自由贸易区
C. 保税区
D. 边境经济技术开发区
[判断题]临时定期、软席、硬席、探亲乘车证的有效期间为6个月,可跨年填发。
A.正确
B.错误
[判断题](75836)( )照明电路里的保险丝是由电阻率比较大而熔点较低的铅锑合金制成的。( ) [211110214](1.0分)
A.正确
B.错误
[多选题] 在重性精神病人排查管控工作中,对排查发现的重性精神病人,要积极协调卫生、民政、残联等部门和基层组织,落实( )等救治救助、服务管理措施。
A. 随访随诊
B. 风险评估
C. 贫困帮扶
[单选题]皮肤损害的患者在服药期间,不应给予()
A. 高 盐
B. 高 钾
C.高蛋白
D.高钙
[单项选择]按磁感应分类,以下分类哪项错误()
A. 氧是顺磁性物质
B. 银是反磁性物质
C. 铜是顺磁性物质
D. 铁是铁磁性物质
E. GD-DTPA是磁性物质
[判断题]调车作业使用书面计划时,参加作业的人员必须每人一份。
A.正确
B.错误
[多选题]从循环洗油馏程分析发现270℃前馏分减少,说明( )
A.循环油中重组分含量较多
B.排渣量不足
C.排渣量过大
[单项选择]What's the purpose of the conference
[多选题]坚持()相结合的原则,车站根据实际客流情况,进行分级客控。
A.点控
B.线控
C.网控
D.线网级控制
[多项选择]What is Jack’s suggestion for the next business class
A. To discuss the topic of the former lecture.
B. To hold a debate on how to make attractive advertisements.
C. To hand in an assignment to the professor.
D. To discuss marketing strategies with the professor.
[判断题] 货物交接的基本原则是:交接前由交方负责,交接后由接方负责。库场理货-001
A.正确
B.错误
[单项选择]公民、法人或者其他组织对行政机关的具体行政行为不服申请行政复议的,作出具体行政行为的行政机关属于
A. 生产、销售不符合卫生标准食品
B. 生产、销售假药
C. 共犯论处
D. 对人体健康造成严重危害
E. 嫌疑犯
[单选题]急性酒中毒不包括以下哪个类型
A.酒中毒性脑病
B.单纯醉酒
C.病理性醉酒
D.复杂性醉酒
E.普通醉酒状态
[单选题]作业人员从高处往下抛掷物品容易造成( )伤害。
A.高空坠落
B.物体打击
C.坍塌
[多项选择]投资者预期A公司的新产品将会非常畅销,那么投资者适合采取的策略是()。
A. 买入A公司的股票
B. 买入A公司的债券
C. 卖出以A公司为参考实体的信用违约互换
D. 买入以A公司为参考实体的信用违约互换
[单项选择]
Some oil companies plan to get rid of some of the pollution they produce by pumping it into rocks deep inside the Earth, where they say it will stay for thousands of years. Other people, though, aren’t so sure this is advisable; environmental groups say that putting this pollution back into the Earth is a bad idea.
When oil burns, it doesn’t just produce heat: it also produces carbon dioxide. Carbon dioxide is a natural part of the air, but because people burn so much oil, there’s too much carbon dioxide in the air. This extra carbon dioxide is pollution; some scientific studies show that carbon dioxide is one of the "greenhouse gases ’that is causing the Earth’s temperature to rise.
Environmentalists say that the oil companies’ plans may not work. The oil companies say they are making sure that the gas will never escape, but environmentalists wonder how the oil companies can be so sure that the gas won’ t seep into t
A. It actually prevents companies from looking for other energy sources.
B. It is difficult to make sure that the buried gas will stay where they are.
C. It might turn up with serious consequences in the years to come.
D. It will possibly take up too much room in the earth to be sustainable.
[判断题]事故按照危害程度分为一般事故、严重事故、重大事故和特大事故四类。( )
A.正确
B.错误
[判断题]AYG-60型压缩氧自救器由高压供氧系统和低压呼吸系统构成。
A.正确
B.错误
[填空题]对于生锈面积超过构件面积<--NRC-->的构件,应对整个构件进行整体除锈并进行油漆防锈处理。
[单选题]下列内镜需灭菌,但除外( )
A.纤维支气管镜
B.腹腔镜
C.脑室镜
D.关节镜
E.胸腔镜
[多项选择]患者男,24岁,因“体重持续增加7年,嗜睡3年,加重1个月”来诊。患者7年前无明显诱因出现体重持续增加,从65kg增加到105kg。近3年出现睡眠增多,每日睡10+h,伴有记忆力减退。近1个月来,困倦感明显加重。病来无头痛,无视力下降,尿、粪正常。查体:T37.2℃,P90次/min,R25次/min,BP126/88mmHg;意识清楚,言语含糊;手背及胸背部皮肤干燥、粗糙、皲裂,面部臃肿;甲状腺不大;双瞳孔等大正圆,D=2.5mm,对光反射灵敏,视力、视野粗测正常;鼻、唇肥厚,舌大声粗;颈软,心、肺、腹无明显异常;四肢粗大,手指粗壮,手背及手掌肥厚,肌力、肌张力正常,病理反射阴性。颅脑MRI:垂体增大,视交叉受压上移,垂体柄显示欠佳,考虑存在垂体瘤。该患者存在垂体瘤,除检测甲状腺功能外,还应检测的激素是()
A. GH
B. ACTH-COR
C. PRL
D. FSH
E. LH
F. 降钙素
G. 肾上腺素
H. 醛固酮
I. 前列腺素
[多选题]陆地迫降时地板高度出口1号援助者的职责包括:( )
A.第一个滑下飞机,站于滑梯的一侧协助旅客撤离
B.在客舱乘务员能力丧失时打开机舱门
C.协助能力丧失的客舱乘务员一同撤离飞机
D.在客舱乘务员能力丧失时,现在舱门辅助空间指挥旅客撤离飞机
[单项选择]
[听力原文]
W: What are the historical trends with respect to marriage and family
M: The "traditional nuclear family", consisting of a breadwinner-husband and a homemaker-wife raising children, was the norm for most households in the United States in the 1950s. In these traditional families, married couples were usually of the same religion, the same race, and the same socio-economic class, and they were supposed to live together for the rest of their lives even if the relationship was abusive or dysfunctional. Times have changed. Today, the "Ozzie and Harriet" family constitutes only about 10 percent of all families (1). Family diversity is now the norm, with 25% of households consisting of adults living alone, and the rest made up of people living in a variety of family structures, such as dual-income families, single-parent families, step-families, inter-racial families, inter-faith families, foster families, cohabiting
A. 10%
B. 25%.
C. 35%.
D. 50%.
[判断题]使用中的氧气瓶和乙炔气瓶应垂直固定放置,氧气瓶和乙炔气瓶的距离不得小于5m,气瓶的放置地点不准靠近热
A.正确
B.错误
[单选题]起飞基准速度在PFD上显示为什么颜色
A.白色
B.绿色
C.洋红色
D.琥珀色