热门试题:
[判断题]轨道电路就是把线路上的两股钢轨当做导线用,在线路两端,用绝缘接头隔开()
A.正确
B.错误
[单项选择]在规划研究咨询的发展战略目标中,管理目标包含体制改革、组织机构、管理制度以及( )等。
A. 可持续发展
B. 公平分配
C. 人员素质
D. 社会保险
[判断题] 轨面标准线的静态检测周期是6个月。 (高铁维规第六十条。改正:12个月)( )
A.正确
B.错误
[单选题] 换流站中那种CT是全光CT()
A.INBS
B.IDCP
C.IDCN
D.IDL
[判断题]天窗内所有影响施工路用列车运行的施工维修作业必须在施工路用列车返回前销记。
A.正确
B.错误
[单项选择]阿司匹林红外吸光谱中主要特征峰的波数是:苯环υc=c().
A. 3300~2300cm-1
B. 1760,1695cm-1
C. 1610~1580cm-1
D. 1310,1190cm-1
E. 750cm-1
[单选题]曲线轨距加宽值,曲线半径R<195m,轨距加宽值为( )mm。
A.0
B.5
C.10
D.15
[单选题]下列不属于违反治安管理行为的是( )。
A.卖淫
B.嫖娼
C.强迫他人卖淫
D.在公共场所拉客招嫖
[单项选择]进行信息化战争的关键因素在于()的信息化。
A. 人员配备
B. 武器装备
C. 作战理论
D. 军事技术
[判断题]速凝剂的作用是加速水泥的水化硬化,在很短的时间内形成足够的强度。
[单项选择]
Sometimes children are kidnapped. Kidnapping is like stealing a child. It is important that kidnapped children are found and brought home as soon as possible.
The sooner the public knows about a kidnapping the sooner they might be able to help. Some people decided to start a program that would alert the public about kidnappings right away. This program is called Care Alert.
The Care Alert program gives television and radio stations important information about a recently kidnapped child. These stations will then tell the public what happened in hopes that someone might be able to help. Anyone that may have seen something about the kidnapping could then call the police.
Sometimes one parent of a child kidnaps his or her own child. These kidnappings are not usually used in the Care Alert program. The Care Alert program is only used when a stranger has taken a child.
When a child is kidnapped he is in a lot of danger. It is very important to find him a
A. kidnappers
B. lives
C. toys
D. parents
[判断题]群众路线是人民当家作主和依法治国的根本保证,人民当家作主是社会主义民主政治的本质特征依法治国是党领导人民治理国家的基本方式。
A.正确
B.错误
[单选题] 坠落防护(《坠落防护》见附录 1应通过采取消除坠落危害、坠落预防和坠落控制等措施来实现。若以下防护措施均无法实施,不得进行高处作业。坠落防护措施的优先选择顺序( )。
1设置固定的楼梯、护栏、屏障和限制系统;
2使用坠落保护装备,如配备缓冲装置的全身式安全带和安全绳等
3尽量选择在地面作业,避免高处作业;
4使用区域限制安全带,以避免作业人员的身体靠近高处作业的边缘;
5使用工作平台,如脚手架或带升降的工作平台等;
A..32541
B..34521
C..35421
D..51542
[判断题]焊接工作开始前焊枪应注意下列事项:
a) 喷嘴管应当光滑、清洁,喷嘴内、外表面有飞溅金属,应立即除去,喷嘴变形应及时更换。
b) 导流套有损坏应更换。
c) 导电嘴表面应光滑,如内孔损坏应换新的。
d) 送丝弹簧管应定期检查清洁,发现损坏立即更换。
A.正确
B.错误
[多选题] 人民警察使用武器造成人员伤亡的,应当( )。
A.及时抢救受伤人员
B.保护现场
C.向当地公安机关报告
D.向政府机关报告
[多选题]以下属于对企业实施清洁生产审核评估的重点的是:()
A.企业清洁生产审核过程的真实性
B.企业清洁生产方案的合理性
C.企业清洁生产方案的有效性
D.企业清洁生产方案的经济性
[单选题]油罐切换不好会造成装置进料( )
A.泄漏
B.超压
C.降压
D.抽空
[判断题]( )各装车单位应建立健全装车岗位责任制,坚持装车从严、发站从严的原则,严格按装载加固方案或相关技术要求装车。
A.正确
B.错误
[判断题]公司反违章工作贯彻“落实责任,健全机制,查防结合,以防为主”的原则。
A.正确
B.错误
[单项选择]I began to smoke when I was in high school. My parents didn’t care much, They both smoked, and my older brother did, too. In school, the teachers talked against smoking, but the cigarette advertisements were so exciting. The men in the ads were so good-looking and so successful, and the women were well, they were beautiful and sophisticated.
I read a book called how to stop smoking. The writer said that smoking wastes time, and that cigarettes cost a lot of money. Ten years later, everyone began to hear about file negative effects of cigarette smoke: lung disease, cancer, and heart problems. After that, there was a health warning on every pack of cigarettes.
Then two events made me think of giving up smoking. First, I started to cough. I thought it was just a cold, but it didn’t get better. Second, my brother got lung cancer. He got sicker and sicker. My brother and I used to smoke cigarettes together over twenty years age, and we smoked our last cigarettes together the day b
A. Both man and woman can smoke.
B. Smoking is dangerous.
C. Smoking has no negative effects on people’s health.
D. Smoking is the symbol of successful peopl
[单项选择]当校准一件设备时,以下哪一条最为重要______。
A. 忠于职守的校准人员
B. 维修履历卡片
C. 所使用的校准器
D. 校准间隔周期
[判断题]烟火药、黑火药、引火线仓库单库存药量不宜超过10,000kg。
A.正确
B.错误
[判断题]2004年1月2日,上海证券交易所发布了上证50指数,它的基期指数为100点。( )
[单选题]一旦发现有人晕倒在有限或密闭容器内,下面最适合的急救方法是( )。
A.第一时间跳下去,把中毒者背上来
B.腰间系上绳子,第一时间跳下去,把中毒者拉上来
C.佩戴防毒面具或空气呼吸器,在有人监护的情况下施救
[单项选择]牙体缺损最常见的病因是()
A. 龋病
B. 外伤
C. 磨损
D. 楔状缺损
E. 酸蚀
[单选题]增长差距性失业和周期性失业统称为( )。
A.季节性失业
B.结构性失业
C.需求性失业
D.需求不足性失业
[单项选择]珠海的市花是()
A. 芙蓉
B. 红棉
C. 杜鹃
D. 紫荆
[单选题]脑动脉粥样硬化时下列哪项不易发生
A.引起脑萎缩
B.动脉瘤形成
C.引起延髓性麻痹
D.继发脑血栓形成
E.大脑中动脉病变最重
[判断题]应按规定为线路维修提供生产、生活所需的设施和设备。
A.正确
B.错误
[单选题]公路中线测量在纸上定好线后,用穿线交点法在实地放线的工作程序为( )。
A.放点、穿线、交点
B.计算、放点、穿线
C.计算、交点、放点
D.放点、交点、穿线
[判断题]‘年整治银行业市场乱象工作要点共计8项20条内容。
A.正确
B.错误
[判断题]历史上长期而频繁的经济和文化交往促进了粤菜的发展。
A.正确
B.错误
[单项选择]预防阵发性夜间呼吸困难发作,最主要的护理措施是
A. 保持安静,减少声、光刺激
B. 夜间继续吸氧
C. 夜间睡眠应保持半卧位
D. 睡前给小量镇静剂
E. 注意保暖
[判断题]TVDS系统中采用大容量图像数据实时处理技术,精确定位技术,模式识别技术,抗阳光干扰技术。
A.正确
B.错误
[多选题]交流电桥的工作原理是用差值测量法比较两个交流电压或两个阻抗的线路,它是由(____)组成的网络。
A. 正弦波电源
B. 指示器
C. 比例器
D. 进行比较的阻抗(或电压)
[多选题]乙烯装置乙烯损失的主要部位有( )
A.冷箱尾气
B.脱乙烷塔釜
C.压缩凝液汽提塔釜
D.乙烯精馏塔釜