热门试题:
[单项选择]碳素钢根据其含杂质的多少,可以分有( )钢。
A. 普通钢
B. 低合金钢
C. 工具钢
D. 特殊钢
[单选题]影响癔症发病最主要因素是患者的
A.血型
B.年龄
C.心理因素
D.经济状况
E.器质性病变
[判断题]动火作业间断或终结后,应清理现场,方可离开。
A.正确
B.错误
[单选题]在更换钻井泵缸套期间,司钻误合该泵气开关,险些造成作业人身伤害事故。此次事件的直接原因是( )。
A.司钻安全意识薄弱;
B.检修泵前未对该泵开关进行挂牌.上锁,司钻操作失误;
C.泵房人员操作不当;
D.维修设备前未做好充分的风险评估。
[判断题]代销保险是一种特殊的金融商品,只要保险公司在总行准入名单中,其产品销售可以通过各种快捷支付方式将保费转至保险公司。
A.正确
B.错误
[单选题]下列论述中正确的是 ( )
A.溶解度表明了溶液中溶质和溶剂的相对含量
B.溶解度是指饱和溶液中溶质和溶剂的相对含量
C.任何物质在水中的溶解度都随着温度的升高而升高
D.压力的改变对任何物质的溶解度都影响不大
[单选题]初产妇李某,30岁,孕39周,于胎儿分娩后突然出现烦躁不安、恶心、呕吐,继而出现呛咳、呼吸困难,R24次/分,HR126次/分,BF80/50mmHg。此时,产妇很可能发生
A.失血性休克
B.羊水栓塞
C.心力衰竭
D.哮喘发作
E.急性胃肠炎
[单选题]关于急性阑尾炎的腹痛,不正确的是
A.早期为上腹痛或脐周围痛;
B.早期在上腹部或其周围有位置不定的疼痛;
C.早期阑尾点(McBurney点)有压痛和反跳痛;
D.起病数小时后McBurney点有压痛和反跳痛;
E.加压于左下腹并突然松手时可引起右下腹痛;
[判断题]人工智能技术层包括开源框架、算法模型和通用技术。( )
A.正确
B.错误
[单选题]列车运行中,遇昼间展开的( )信号旗,司机需将列车降低到要求的速度。
A.红色
B.黄色
C.绿色
[单项选择]There are only three available strategies for controlling cancer: prevention, screening and treatment. Lung cancer causes more deaths than any other types of cancer. A major cause of the disease is not【C1】______known; there is no good evidence that screening is much help; and treatment fails in about 90 percent of all cases. At present, therefore, the main strategy must be【C2】______. This may not always be true, of course, as for some other types of cancer, research over the past few decades has produced(or suggested)some importance in prevention, screening or treatment. 【C3】______however, we consider not what researcher may one day offer but what today"s knowledge could already deliver that is not being delivered, then the most practical and cost-efficient opportunities for avoiding premature death from cancer, especially lung cancer, probably involve neither screening nor improved【C4】______. but prevention. This conclusion does not depend on the unrealistic assumption that we can eliminate tobacco. It merely assumes that we can reduce cigarette sales appreciably by raising prices or by【C5】______on the type of education that already appears to have a positive effect on cigarette assumption by white-collar workers and that we can substantially reduce the amount of tar【C6】______per cigarette. The practicability of preventing cancer by such measures applies not only in those countries, such as, the United States of America, because cigarette smoking has been common for decades, 25 to 30 percent of all cancer deaths now involves lung cancer, but also in those where it has become【C7】______only recently. In China, lung cancer as yet accounts for only 5 to 10 percent of all cancer deaths. This is because it may take as much as half a century for the rise in smoking to increase in the incidence to lung cancer. Countries where cigarette smoking is only now becoming widespread can expect enormous increase in lung cancer during the 1990"s or early in the next century,【C8】______prompt effective action is taken against the habit-indeed, such increase are already plainly evident in parts of the world. There are reasons why the preventions of lung cancer is of such overwhelming importance: first, the disease is extremely common, causing more deaths than any other types of cancer now【C9】______: secondly, it is generally incurable; thirdly, effective, practicable measures to reduce its incidence are already reliably known; and finally, reducing tobacco consumption will also have a substantial【C10】______on many other diseases.【C3】
A. Although
B. If
C. Since
D. Unless
[单选题]下列选项中,不是自然语言处理的解决方法的是?
A.规则方法
B.统计方法
C.递归方法
D.深度学习方法
[多选题]新中国建立时制定的外交政策是()。
A.“另起炉灶”
B.“平等互惠”
C.“打扫干净屋子再请客”
D.“一边倒”
[单选题]铁路专用通信设备的维护应采取( )的方式。
A.日常维护
B.集中检修
C.重点整治
D.ABC都是
[单选题] 宪法规定,国家倡导社会主义核心价值观,提倡爱祖国、爱人民、爱( )、爱科学、爱社会主义的公德。
A. 公平
B. 民主
C. 正义
D. 劳动
[判断题]冬季上下车时,要注意脚蹬、车梯扶手等有无冰雪。
A.正确
B.错误
[多选题]在()等条件下进行模拟训练时,必须利用监控设备,随时掌握受训人员情况,防止发生意外事故。(易)
A.高温
B.浓烟
C.黑暗
D.恐怖、噪音
[单项选择]
早产儿胎龄32周,出生体重1600g,生后5h出现进行性呼吸困难,入院时呼吸不规则,经皮氧饱和度为75%。 |
应先进行哪一项紧急治疗
A. 肺表面活性物质
B. 抗生素
C. 气管插管、机械通气
D. 纠正酸中毒
E. 关闭动脉导管
[多选题] 小儿腹泻的治疗原则包括( )
A. 调整饮食合理用药
B. 应用广谱抗生素积极治疗
C. 预防和纠正脱水
D. 禁食至腹泻停止
E. 保护肠黏膜
[多选题]拒绝或者阻碍人民警察依法执行职务,有下列行为之一的,给予治安管理处罚:
A.公然侮辱正在执行职务的人民警察的
B.阻碍人民警察调查取证的
C.拒绝或者阻碍人民警察执行追捕、搜查、救险等任务进入有关住所、场所的
D.对执行救人、救险、追捕、警卫等紧急任务的警车故意设置障碍的
[多项选择]哪些是慢性肾功能衰竭的透析指征( )(2000年)
A. 血BUN≥35.7mmol/L(100mg/dL)
B. 血钾>6.0mmol/L
C. 二氧化碳结合力<17.1 mmol/L
D. 血肌酐≥884μmol/L(10mg/dL)
[单选题]世界政治格局多极化趋势始于20世纪( )。
A.60年代末
B.70年代初
C.80年代初
D.80年代末
[单选题]压力容器操作工艺参数要做到()。
A.A. 四慢一平稳
B.B.三慢一平稳
C.C.四慢两平稳
D.D.四慢三平稳
[单选题]最易诱发冠心病患者心绞痛发作的天气是( )
A.暴雨
B.气压低
C.大风
D.寒冷
E.湿热
[判断题]一个企业在进行事故管理时,对未遂事故可以不去管它。
A.正确
B.错误
[单选题]有砟轨道实设最大超高,在单线上不得大于()。
A.125mm
B.150mm
C.175mm
D.200mm
[判断题]DF4型内燃机车采用交一直流电力传动装置。( )
A.正确
B.错误
[单项选择]我国教育目的的基本精神在于,培养体、智、德、美全面发展的、()、社会主义现代化的建设者。
A. 个性自由发展
B. 具有开拓精神
C. 具有独立个性的
D. 具有创造才能
[单项选择]在互斥方案比选中,差额投资回收期是两个互斥方案( )。
A. 投资回收期的差值
B. 投资效果系数的差值
C. 业务量不同时,用差额投资净收益回收差额投资所需的时间
D. 年业务量相同时,用差额投资净收益回收差额投资所需的时间
[单项选择]定义应用需求的原型生命周期应是一个迭代的过程,而其迭代工作量主要是集中在( )。
A. 识别需求
B. 开发模型
C. 模型认证
D. 模型修改