热门试题:
[单项选择]As Chief Officer of a vessel underway，it comes to your attention that the vessel is，in some manner，unseaworthy. Under such circumstances the Master is required to take action upon receiving（）.
A. information of such condition from yourself
B. notification of such condition from yourself and the Second Officer
C. notification of such condition from yourself and any other member of the crew
D. notification of such condition from yourself or the Second Officer
[单项选择]在关系中“主码”不允许取空值是指( )约束规则。
A. 数完整性
B. 用户定义的完整性
C. 引用完整性
D. 实体完整性
[填空题]钻井过程中,当泥页岩密度值偏离其密度趋势线时,( )存在异常地层压力。[每空1分]
[单项选择] Sharks Perform a Service for Earth’s Waters
It is hard to get people to think of sharks as anything but a deadly enemy. They are thought to (51) people frequently. Although these fish perform a valuable (52) for earth’s waters and for human beings, business and sport fishing are threatening their (53) . As a result, some sharks are at risk of disappearing from Earth.
Warm weather may influence both fish and shark (54) . Many fish swim near coastal areas because of their (55) waters. Experts say sharks may follow the fish into the same areas, (56) people also swim. In fact, most sharks do not purposely charge at or bite humans. They are thought to mistake a person (57) a sea animal, such as a seal (海豹) or sea lion. That is why people should not swim in the ocean when the sun goes down or comes up, because those are the times when sharks are looking for (58) . Experts also say that bright colors and shiny jewelry (珠宝) may cause shar
A. recover
B. escape
C. return
D. cut
[判断题] 无线公网终端必须采用外置天线。
A.正确
B.错误
[单选题]公司招聘录用员工或人才按照“公开、平等、竞争、（）”的原则。
A.民主
B.创新
C.择优
D.公正
[单选题]( )假设属性的最大值和最小值分别是87000元和11000元,现在需要利用Min-Max规范化方法,将“顾客收入”属性的值映射到0~1 的范围内,则“顾客收入”属性的值为72400元时,对应的转换结果是:( )
A. .0.808
B. .0.837
C. .0.769
D. .0.987
[简答题]果树年龄时期（或生命周期）的含义是什么？如何划分果树年龄时期？
[简答题]哪些情况应停止使用基本闭塞法，改用电话闭塞法行车？《技规》第311条）
[单项选择]在国际上，工程咨询是为( )全过程服务的行业。
A. 投资建设
B. 国家发展规划
C. 宏观调控政策
D. 工程管理
[判断题]战斗员负责管好各自分工的随车器材和个人防护装备。
[单项选择] Questions 21～22 are based on the following news from the BBC or the VOA. At the end of the news item, you will be given 10 seconds to answer the questions. Now listen to the news.
According to the news, Israeli airstrikes ______.
A. killed a Jihad militant in his car
B. happened after militant had fired a rocket toward northern Goza
C. were observed from both a helicopter and a drone
D. wounded other two militants
[判断题]当快速通过功能有效时，在每辆列车成功通过进路后，进路会重新建立并开放信号。
A.正确
B.错误
[单选题]以下不是红细胞特征的是( )。
A.血液中数量最多的血细胞
B.生理变化范围大
C.具有可塑变形性
D.具有悬浮稳定性
[单选题]T 接是指分布式电源( )处未设置专用的开关设备（间隔），如分
布式电源直接接入架空或电缆线路方式。
A.变压器
B.接入点
C.电容器
D.消弧线圈
[单选题]若某人注视( )距离物体,此时眼的集合角为5ma。
A.20cm
B.33cm
C.40cm
D.50cm
[单选题]A-D-C-001 1 2 3
全焊无缝道岔内( ???)要焊接或胶接。
A.侧股所有钢轨接头
B.除尖轨外的钢轨接头
C.直股所有钢轨接头
D.直、侧股所有钢轨接头
[判断题]现行《中国人民银行反假人民币奖励办法》规定，申请破获伪造假人民币案件奖励费用时，应提供检察院立案决定书、批准逮捕决定书和起诉意见书等材料。
A.正确
B.错误
[填空题]循环风机风量与转速成正比，压头与转速成（），功率与转速成（）。
[单选题]纳税人对指标评价情况有异议的,可在评价年度次年3月份向主管税务机关提出复核申请。
A.正确
B.错误
[单选题]R>800m的正线及到发线曲线，缓和曲线的正矢与计算正矢差，计划维修容许偏差为（）。《修规》第3.1.10条
A.3mm
B.6mm
C.9mm
D.12mm
[单项选择]Gomori-Burtner六胺银法显示神经内分泌细胞的结果是（）。
A. 亲银细胞呈黑色，背景呈淡黄色
B. 亲银细胞呈棕色，背景呈浅红色
C. 亲银细胞呈紫蓝色，背景呈浅红色
D. 亲银细胞呈黑色，背景呈浅红色
E. 亲银细胞呈绿色，背景不着色
[单选题]断路器的电气图形为()。
A.A、
B. B、
C. C、
[单选题]产妇，26岁，产后3天诉乳房痛，对其乳房进行评估，正确的指导是
A.若一侧为平坦乳头，应先喂凸出乳头，后喂平坦乳头
B.若患乳腺炎，先喂健侧乳房，再喂患侧乳房
C.若为皲裂乳头，先喂破损乳头，再喂正常乳头
D.若为乳房胀痛，先喂胀痛轻的乳房，后喂较严重的乳房
E.若为正常乳头，一侧乳房吸空一半即换另一侧乳房
[判断题]进出口货物的海关统计价格分别按照美元和人民币统计
[单项选择]
Most children with healthy appetites are ready to eat almost anything that is offered them and a child rarely dislikes food (61) it is badly cooked. The (62) a meal is cooked and served is most important and an (63) served meal will often improve a child’s appetite. Never ask a child (64) he likes or dislikes a food and never (65) likes and dislikes in front of him or allow (66) else to do so. If the father says he hates fat meat or the mother (67) vegetables in the child’s hearing he is (68) to copy this procedure. Take it (69) granted that he likes everything and he probably (70) . Nothing healthful should be omitted from the meal because of a (71) dislike. At meal times it is a good (72) to give a child a small portion and let him (73) back for a second helping rather than give him as (74) as he is likely to eat all at once. Don’t talk too much to the child (7
A. much
B. little
C. few
D. many
[判断题]保温层要求严实,外表光滑平整,整体粗细均匀。( )
A.正确
B.错误
[单项选择]软件测试的目的是______。
A. 评估软件可靠性
B. 发现并改正程序中的错误
C. 改正程序中的错误
D. 发现程序中的错误
[判断题]智能钥匙管理机的密码或授权卡应由运维班班长负责保管，不允许外泄。
A.正确
B.错误
[单选题]进入轨行区施工的作业人员必须按要求穿着（ ）。
A.荧光衣
B.防护服
C.防水衣
D.工作服
[填空题]钻井设备包含( )、旋转系统、井液循环系统、传动系统、控制系统、动力驱动系统 、钻机底座、钻机辅助设备系统八大系统。
[多选题]通过( )的操作可以降低精馏塔操作压力
A.提高回流量
B.增加入料量
C.降低加热增蒸汽量
D.降低采出量
[判断题]45#钢淬火温度是850℃，此时钢铁呈橘黄微红色
A.正确
B.错误
[多选题]安全预案主要包括（）
A.A、分析判断
B.B、情况设想
C.C、力量编成
D.D、任务区分
[单选题]关于葡萄胎患者的处理方法，下列说法正确的是
A.若阴道出血量不多，可暂观察
B.行清官术前滴注缩宫素以减少术中出血
C.卵巢黄素化囊肿均需手术切除
D.所有患者均需行预防性化疗
E.所有患者均需定期随访
[判断题]按照《票据法》的规定，票据的出票、背书、承兑、保证都是票据行为。
A.正确
B.错误
[单项选择]创伤后的全身性反应，不包括（）。
A. 体温的变化
B. 神经内分泌系统反应与代谢功能变化
C. 炎症反应与免疫功能变化
D. 血压的变化
E. 主要内脏器官功能变化
[单选题]电客列车司机、调车司机年度质量安全专项奖奖励基数为（ ）。
A.A、1.0
B.B、1.2
C.C、1.3
D.D、1.4
[多选题]“___”下锚补偿装置的传动效率宜≥“___”%。
A.棘轮
B.弹簧
C.液压
D.97
E.85
F.70
