热门试题:
[单项选择]关于黄曲霉毒素的叙述，正确的是（）。
A. 不耐热
B. 在酸性环境中易破坏
C. 属于肝脏毒
D. 主要污染干燥、冷藏食品
E. 耐碱
[单选题]“为中华崛起而读书”是哪位伟人的名言（ ）。
A.毛泽东
B.周恩来
C.朱德
[判断题]UPS电源和逆变器时间检查校对属于重点检修项目。（ ）
A.正确
B.错误
[多选题]货币的职能体现在哪几个方面。
A.价值尺度
B.流通手段
C.贮藏手段
D.支付手段
E.世界货币
[单选题]92.依据《中国南方电网有限责任公司电力安全工作规程》（Q/CSG 510001-2015）第10.4.4.4条规定：融冰时，装设好导线与地线之间的连接线后，应（），并拉开地线接地刀闸。
A.不拆除导线接地线
B.拆除个人保安线
C.拆除腰绳
D.拆除导线接地线
[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.【C8】
A. if
B. unless
C. provided
D. while
[单选题]列车相撞，未构成一般B类以上事故的，为（）事故。
A.一般A类
B.一般B类
C.一般C类
D.一般D类
[单项选择]贫血患者，咳嗽、痰中带血半年，痰中查见抗酸杆菌，实验室检查：HGB78g／L，白细胞、血小板正常，血清铁5．78μmol／L，骨髓铁粒幼细胞减少，外铁增加。治疗错误的是（）
A. 抗结核治疗
B. 抗感染治疗
C. EPO
D. 肌注右旋糖酐铁
E. 补充维生素
[单选题]霍奇金病特征性的热型是
A.间歇热
B.稽留热
C.弛张热
D.不规则热
E.回归热
[单选题](单选题).宋代的本草代表著作是( )
A.《开宝本草》
B.《本草纲目》
C.《嘉祐本草》
D.《证类本草》
[简答题]某中美合资企业想要招聘几名英文秘书。外方经理想了解应聘者的简历。请用英文写一篇自我介绍。
姓名：李平
出生：1968.8.28.上海
简历：1989年毕业于北京师范大学英语系；
在中学里教了两年英语；
在外文书店里当了两年店员。
特长：汉语较好，英语也不错，1986年曾获北京市英语竞赛第二名。平时利用业余时间自学英语。现在能与外宾交谈。
自信能胜任此项工作，并决心把工作搞好。
注意：
1．介绍须包括所有内容要点，但不要逐条译成英语。
2．词数100—120。
[多选题]禁止()与()同车运输。
A.A-氧气瓶
B.B-六氟化硫
C.C-氯气
D.D-乙炔瓶
[判断题]在操作中，厨师要严格按操作规程和( )标准执行，注意卫生，做到安全和节约。
A.正确
B.错误
[单选题]电流对人体的伤害可以分为( )两种类型。
A.电伤、电击
B.触电、电击
C.电伤、电烙印
D.电烙印、触电
[多选题]以下关于乘车限制说法不正确的是（）。
A.可携带非折叠自行车进站
B.身高 1.3 米的乘客无需购票乘车
C.宠物、活禽的进站要求与安检工作保持一致
D.禁止携带气球进站
[判断题]农民工资保证金不能扣划。
A.正确
B.错误
[单选题]缓和曲线是连接（ ）的过渡曲线。
A.直线和圆曲线
B.直线和直线
C.直线与缓和曲线
D.圆曲线与圆曲线
[单项选择]
A. issue
B. policy
C. reform
D. project
[判断题]汽车正常行驶时，总是偏向行驶方向的左侧或右侧，这种现象称为车轮回正。
A.正确
B.错误
[单项选择]工程咨询公司为承包商服务时，工程咨询公司是以( )身份承担工程项目咨询。
A. 业主
B. 投资者
C. 分包商
D. 管理者
[单选题]( )以上单位应当成立由本单位首长、分管领导、有关业务处（科）室负责人、专业技术人员组成的安全委员会，负责组织开展安全管理相关工作。
A.总队
B.支队
C.大队
D.站
[单选题]普速铁路维修天窗：双线不应少于 120 分钟，单线不应少于( )分钟。
A.60
B.90
C.120
D.180
[单选题]病人,女，32岁。不规则低热伴关节疼痛2个月。体格检查:面部出现蝶形红斑,口腔内有溃疡,双膝关节轻度红肿,有压痛。实验室检查蛋白尿(十),颗粒管型(十),白细胞3.4�109/L,ANA 阳性。治疗该病的首选药物为:
A.金刚烷胺
B.雷公藤
C.非甾体抗炎药
D.糖皮质激素
E.免疫抑制剂
[判断题]热成象仪应用红外线成象原理,有效地监测距离80米,可视角度55度 ,防水防冲撞,密封外壳,重量为2.7千克。( )(易)
A.正确
B.错误
[判断题]《论语》是儒家学派的经典著作之一。（ ）
A.正确
B.错误
[判断题]有施工分包的，施工承包单位应与分包单位签订合同和安全协议，且劳务分包单位已与其被派遣劳务人员签订劳动合同。
A.正确
B.错误
[单选题]重点目标及重点防范区域的视频图像宜按15天进行存储,图像分辨率不低于( ),图像帧率支持1~25帧/秒可调。
A.C.IF
B. 2CIF
C. 4CIF
D.D.1
[单选题]The maximum speedbrake deflection with the autopilot engaged is: 25 ° for spoilers 3 and 4;12.5 ° for spoiler 2;how about the maximum speedbrake deflection in manual flight_____
A. decrease
B. fixedness
C. increase
[判断题]针对运行绝缘架空地线的检修不属于带电检修。
A.正确
B.错误
[单选题]无砟轨道单向调节器应加强尖轨及其后50～100m范围内钢轨锁定，双向调节器应加强( )范围锁定。
A.尖轨
B.基本轨
C.焊缝
D.固定区
[单选题](单选) 漏电保护器可防止（ ）。
A.触电事故
B.电压波动
C.电流过大
D.双手触电事故
[单选题]
在中性点直接接地系统中，发生单相接地故障时，非故障相的对地电压升高3倍。
A.正确
B.错误
