| Cyber crime which is the illegal
activity committed on the Internet is the fastest growing criminal activity in
the world and is of major concern to the Government. From traditional crime
on-line to new crimes that target information and communications networks, it
covers a huge range of unlawful activities. UK and international agencies are
working together to combat the threat of cyber crime. Access to information and communications technology (ICT) is globally available and increasingly used. Most Internet and e-mail users are involved in lawful business. However, some use the technology for unlawful activities. Global and transnational crimes can now be committed far distant A. It uses modern science and technology. B. It may be difficult to seek the evidence. C. It contains a huge variety of activities. D. The law enforcement is weak in fighting against it. 热门试题: [单项选择]按我国现行规定，文书档案的保管期限分为永久、定期二种，其中，永久为（）。
A. 50年以上 B. 20年以上 C. 30年以上 D. 15年以下 [单选题]垂直铺设水带时，为了减少水带的下坠力应使用（ ）
A.消防水带卡箍 B.水带挂钩 C.卡牢消防接口 D.使用拉梯 [单选题]下列不属于高层民用建筑的一项是（）.
A.10层的居住建筑 B.建筑高度为25.0m的2层公共建筑 C.10层以上的居住建筑 D.建筑高度为25.0m的单层公共建筑 [判断题]南宁3号线每列车的一位端转向架都装2个高度调节阀。( ）
A.正确 B.错误 [单选题]为了使多个进程能有效地同时处理输入和输出，最好使用（ ）。
A.缓冲池 B.单缓冲 C.双缓冲 D.循环缓冲 [判断题]站内和行人较多的地段，牵引供电设备支柱在距轨面3.5m高处均要设白底黑字“高压危险”并有红色闪电符号的警示标志。
A.正确 B.错误 [单项选择]
Diseases of Agricultural
Plants
Plants, like animals, are subject to diseases of various kinds. It has been estimated that some 30,000 different diseases attack our economic plants; forty are known to attack corn, and about as many attack wheat. The results of unchecked plant disease are all too obvious in countries which have marginal food supplies. The problem will soon be more widespread as the population of the world increases at its frightening rate. Even in countries which are now amply fed by their agricultural products there could soon be critical food shortages. It is easy to imagine the consequences of some disastrous attack on one of the major crops; the resulting famines could kill millions of people, and the resulting hardship on other millions could cause political upheavals disastrous to the order of the world. Some plants have relative immunity to a great many diseases, while others have a susceptibility to them. The tolerance of a particular plant changes as the growing conditions change. A blight may be but a local infection easily controlled; on the other hand it can attack particular plants in a whole region or nation. An example is the blight which killed virtually every chestnut tree in North America. Another is the famous potato blight in Ireland in the last century. As a result of that, it was estimated that one million people died of starvation and related ailments. Plant pathologists have made remarkable strides in identifying the pathogens of the various diseases. Bacteria may invade a plant through an infestation of insect parasites carrying the pathogen. A plant can also be inoculated by man. Other diseases might be caused by fungus which attacks the plant in the form of a mold or smut or rust. Frequently such a primary infection will weaken the plant so that a secondary infection may result from9 its lack of tolerance. The symptoms shown may cause an error in diagnosis10, so that treatment may be directed toward bacteria which could be the result of a susceptibility caused by a primary virus infection.According to the passage, some plant diseases can be prevented by ______. A. killing parasites B. inoculation C. killing insects D. improving growing conditions [单选题]风力超过5级时，禁止砍剪高出或接近带电线路的树木。
A.正确 B.错误 C.略 D.略 E.略 F.略 [单选题]高空作业时，禁止腰间（）。
A.插带工具 B.挂钥匙 C.带手机 D.插带硬质物品 [单选题]下列支出中，属于资本性支出的是（ ）
A.购买固定资产的支出 B.支付职工工资 C.购买原材料的支出 D.支付固定资产日常修理费 [单选题]根据《建筑行业职业病危害预防控制规范》,施工现场应配备受过专业训练的急救员,超过( )人的工程项目应配备急救室。
A.100 B.200 C.300 D.400 [单项选择]一座容纳人数为2800人的剧场，需要设置的疏散门数量为（）个。
A. 8 B. 9 C. 10 D. 11 [单选题]小型打磨机打磨钢轨后,Vmax≤120km/h,钢轨工作边肥边应小于( )mm。
A.0.3 B.0.5 C.1.0 D.0.2 [单选题] 下列属于车场脱轨应急处理的是()
A.立即赶到现场,确认有无人员伤亡.是否影响邻线等,如有人员伤亡立即拨打 120;担任事故 (事件)处理主任(在抢险负责人到位后,由其接手处理),并将脱轨情况报行调 B.信号楼值班员按车场调度的要求封锁相关的线路 C.司机发现发生脱轨时,立即制动停车并报车场调度 D.将现场情况告知车场派班员,并通知信号楼值班员封锁相关线路 [多选题] 医疗卫生机构等责任报告单位必须依法报告的病种包括（ ）
A. 卫生计生委列入乙类、丙类管理的传染病 B. 法定报告传染病 C. 不明原因肺炎 D. 省级人民政府决定按照乙类、丙类管理的其他地方性传染病 E. 其他暴发、流行或原因不明的传染病 [判断题]根据《铁路技术管理规程）（普速铁路部分）规定，施工单位及设备管理单位申请开通区间时应严格掌握开通条件。
A.正确 B.错误 [判断题]在行式自助设备，营业期间至少在每日营业结束前巡检一次。
A.正确 B.错误 [判断题]安装、摘解货车列尾主机、中继器,吊起列车尾部软管时,应确认车列暂不移动方可进行作业。
A.正确 B.错误 [判断题]挡土墙的作用主要用来维护土体边坡的稳定，防止坡体的滑移和土边坡的坍塌。
A.正确 B.错误 [多选题]夫妻双方在实行计划生育中负有共同的责任，主要包括以下含义( )。
A.夫妻双方地位平等，双方都有要求实行计划生育的权利，也有实行计划生育的义务 B.夫妻有同等的参与权，平等协商 C.夫妻要共同支持，平等协商，自觉执行计划生育法律法规 D.生育控制的责任由男女双方共同承担 E.生育控制的责任由女方承担 [单选题]设计、运行和维护网络的过程中，网络软件和实用软件占有非常重要的地位。其中，（ ）不属于应用软件的组成。
A.网络管理软件 B.ping、traceroute C.专门为网络定制的特殊软件 D.客户机与服务器之间进行通信所需要的协议堆栈支撑软件 [多选题]下面有关接触角与矿物润湿程度的说法错误的是( )。
A.当θ=180°时,液体对固体完全不润湿 B.当θ=90°时,规定为疏水表面与亲水表面的分界线 C.当θ<90°时,σ固气<σ固液,液滴被拉开,沿矿物表面展开,矿物表面被湿润,表现为亲水 D.当θ>90°时,σ固气>σ固液,液滴收缩,沿矿物表面聚成珠状,矿物表面不易被润湿,表现为疏水 E.当θ=0°时,固体被液体完全浸湿 [单选题]计算动压时需要哪些数据
A.大气压力和速度 B.空气密度和阻力 C.空气密度和速度 [单选题]普速铁路上道作业时，不得在非作业区域线路上行走。线间距小于（ ）时，禁止在正线与邻线间行走。
A.3m B.2m以上 C.5m D.6.5m [单项选择]
It is often observed that the aged spend much time thinking and talking about their past lives, (21) about the future. These reminiscences are not simply random or trivial memories, (22) is their purpose merely to make conversation. The old person’s recollections of the past help to (23) an identity that is becoming increasingly fragile: (24) any role that brings respect or any goal that might provide (25) to the future, the individual mentions their past as a reminder to listeners, that here was a life (26) living. (27) , the memories form part of a continuing life (28) , in which the old person (29) the events and experiences of the years gone by and (30) on the overall meaning of his or her own almost completed life. [单选题]手动火灾报警按钮应设置在明显和便于操作的部位，当安装在墙上时，其底边距地高度宜为 （）m，且应有明显的标志。
A.1.0—1.1 B.1.1—1.2 C.1.2—1.3 D.1.3—1.5 [填空题]《铁路旅客运输服务质量规范》（铁总运〔2016〕247号）规定，电子显示屏待机状态显示站名、（ ）、欢迎词等信息。
[判断题]预制混凝土人行道板,使用钢筋头作为保护层垫块。
A.正确 B.错误 [判断题](48858)( )视觉信号中：红色要求运行中的列车停车。(2.0分)
A.正确 B.错误 [单项选择]依据《高压输变电设备的绝缘配合》，埋入地中的金属接地体称为（）。
A. 接地电阻 B. 接地装置 C. 工作接地 D. 防雷接地 [判断题]2.16 交通警察为不符合驾驶许可条件、未经考试或者考试不合格人员发放机动车驾驶证的，依法给予行政处分。
A.正确 B.错误 [单项选择]下列哪项不是右心衰的临床表现：（）
A. 下肢水肿 B. 恶心、厌食 C. 肺部湿罗音 D. 颈静脉怒张 [判断题]2.194. 第194题第二种工作票的有效期限最长为7天。()
A.正确 B.错误 [单项选择]19世纪法国文学家福楼拜说：“世界上没有两粒相同的砂子，没有两只相同的苍蝇，没有两双相同的手掌，没有两个相同的鼻子。”对这句话的正确理解是（）
A. 世界上的任何事物都是有矛盾的 B. 世界上事物虽然都有矛盾，但每个事物的具体矛盾又是不相同的 C. 同一事物的矛盾在不同发展阶段上各有不同的特点 D. 事物矛盾的双方各有其特点 [单选题]TYJL-ADX型计算机联锁，监控机、维修机连接到综合柜光交换机以太网口，综合柜光交换机和联锁机光电信号转换器是通过（）连接.
A.A、电缆 B.B、光缆 C.C、软线 D.D、屏蔽线 [单选题]一般情况下（不考虑零息债券的情形），债券的到期期限总是()久期。
A.小于 B.等于 C.大于 D.不确定 [单项选择]下列产生的致热原属于内源性致热原的是
A. 细菌内毒素产生的致热原 B．中性粒细胞产生的致热原 C．病毒产生的致热原 B. 寄生虫产生的致热原 E．立克次体产生的致热原 [单选题]老年照护人员李大姐,近段时间感觉睡眠不好、身心疲惫、心理倦怠,正确的处理方法是 ( )
A. 正确认识衰老、疾病和死亡 B.树立正确的人生观 C.正确排解不良情绪 D.适应不同环境的角色转换 E.以上都是 我来回答: 提交
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