热门试题:
[单选题]电路中形成电流的必要条件是有( )存在,而且电路必须闭合。
A.电阻
B.电流
C.电源
D.用电器
[单选题]猪蛔虫幼虫移行过程一般不经过下列那个器官()
A.心脏
B.肝脏
C.肺脏
D.盲肠
[单项选择]人格发展阶段论的创始人是（ ）
A. 皮亚杰
B. 埃里克森
C. 桑代克
D. 华生
[判断题]梯子应坚固完整，有防滑措施。梯子的支柱应能承受作业人员及所携带的工具、材料攀登时的总重量。
A.正确
B.错误
[单项选择]股份有限公司溢价发行股票筹集的资金超过股票面值的溢价收入应（）
A. 计入资本公积
B. 计入盈余公积
C. 增加为注册资本
D. 作为利得
[单选题]血钙中直接发挥生理作用的物质为
A.草酸钙
B.血浆蛋白结合钙
C.磷酸氢钙
D.氯离子
E.钙离子
[填空题]{{B}}Tennis{{/B}}
During the first 50 years of its history, tennis was largely a
pastime of (1) ______people. Its widespread popularity began 1. ______
with the growth of (2) ______This happened immediately 2. ______
after the major national championships became (3) ______ 3. ______
events. They began to accept professionals as well as amateurs.
Soon industrial firms began to (4) ______tournaments and 4. ______
offer large cash prizes. The turning point came in 1968, when
the British, with the final permission of the International Lawn
Tennis Federation, transformed their Wimbledon championships
to an open event. In the same year, they went a step further by
erasing the (5) ______between amateurs and professionals. 5. ______
Women players’ demand for (6) ______prize money gained its 6. ______
first success in the United States Open in (7) ______. With 7. ______
[多选题]因为预热的主要目的是降低冷却速度,以防止()产生冷裂纹。
A. 高强钢
B. 中碳钢
C. 高碳钢
D. 大厚度结构钢构件
E. 奥氏体不锈钢
[单项选择]若某功放前级是100倍，后级是20倍，那么总功率放大倍数是（）倍。
A. 2000
B. 1000
C. 2500
D. 3000
[单选题]携带型短路接地线的两端夹具应保证接地线与导体和接地装置都能接触良好、拆装方便，有足够的机械强度，并在大短路电流通过时不致松脱。
A.正确
B.错误
C.略
D.略
E.略
F.略
[多选题]支撑产业是公司战略实施的坚强支撑力量,重在围绕公司和电网发展需要,提升(____),为实现高质量发展提供全方位支撑。
A.科技引领
B.价值创造
C.服务保障
D.人才价值
E.智力支持能力
[单项选择]The President ______ his deputy to act for him while he was abroad.
A. promoted
B. substituted
C. authorized
D. displaced
[多选题]列车在区间内车钩破损分离时，必须分部运行时，分割位置规定为（）
A.前钩破损时，应自分离处分割
B.后钩破损时，应自分离处分割
C.前钩破损时，由后方站派机车救援
D.后钩破损时，由后方站派机车救援
[单项选择]制作水果拼盘、冷盘等直接入口的食品，要防止苍蝇、蟑螂等害虫接触，避免（）的污染。
A. 昆虫和肠道致病菌
B. 寄生虫及虫卵
C. 肠道致病菌和寄生虫卵
D. 昆虫和寄生虫卵
[多项选择]糖尿病并发感染最常发生于
A. 胆道
B. 消化道
C. 皮肤
D. 呼吸道
E. 泌尿道
[单项选择]
Some people argue that self-plagiarism (自我剽窃) is impossible by definition because plagiarism is theft and people cannot steal from their own work. But, this is not correct in law. And there are circumstances, such as insurance fraud (保险欺), etc., when it is possible to steal from oneself.
Self-plagiarism, however, must be carefully distinguished from the recycling of one’s work that to a greater or lesser extent everyone legally does. Self-plagiarism in academic (学术的) publications is a gray area. However, many universities indirectly recognize the practice as deceptive. They publish rules preventing students from handing in basically the same essay for credit in different courses. There are also rules against someone handing in the same graduate thesis to different universities. Among established academics, self-plagiarism is a problem. It means basically the same article or book is handed in on more than one occasion for salary raising or
A. the writer’s pursuit for money or promotion
B. the writer’s laziness at his / her work
C. the writer’s deception on himself
D. the writer’s deception on the reader
[判断题]企业可委托对外开展安全生产教育培训业务的机构开展从业人员的安全生产教育培训。
A.正确
B.错误
[单项选择]When it comes to the slowing economy, Ellen Spero isn’t biting her nails just yet. But the 47-year-old manicurist isn’t cutting, filling or polishing as nails as she’d like to, either. Most of her clients spend $12 to $50 weekly, but last month two longtime customers suddenly stopped showing up. Spero blames the softening economy. "I’m a good economic indicator," she says, "I provide a service that people can do without when they’re concerned about saving some dollars." So Spero is downscaling, shopping at middle-brow Dillard’s department store near her suburban Cleveland home, instead of Neiman Marcus, "I don’t know it other clients are going to abandon me, too." She says.
Even before Alan Greenspan’s admission that America’s red-hot economy is cooling, lots of working folks had already seen signs of the slowdown themselves. From car dealer-ships to Gap outlets, sales have been lagging for months as shoppers temper their spending. For retailers, who last year took in 24 percent
A. Spero can hardly maintain her business
B. Spero is too much engaged in her work
C. Spero has grown out of her bad habit
D. Spero is not in a desperate situation
[单项选择]金融机构未按照《货物贸易外汇管理指引》及《细则》审核贸易进出口单证的真实性及其与外汇收支的一致性的，最低处以（）万元罚款。
A. 10
B. 15
C. 20
D. 30
[单项选择]对于海岸港和潮汐作用明显的河口港，设计高水位应采用高潮累积频率（）的潮位。
A. 10％
B. 50％
C. 80％
D. 90％
[单项选择]某厂因污染事故受到环境保护部门的以下处理：(1)责令限期治理；(2)罚款8 000元；(3)赔偿受污染单位损失6 000元。上述处理中属于行政处罚的是_________。
A. -1
B. -2
C. (2)和(3)
D. (1)和(2)
[多选题]单相工频半波整流电路中，二极管导通的时间是(____)。
A.0.01S；
B.0.02S；
C.10ms；
D.20ms
[单项选择]According to the passage, sexual harassment is to ______.
A. violate civil rights
B. violate the Supreme Court
C. cast doubt on the whole issue
D. violate politics
[单项选择]2000年10月9日至11日，党的十五届五中全会在北京举行。会议审议通过了（）。
A. 《中共中央关于国有企业改革和发展若干问题的决定》
B. 《关于加强和改进思想和政治工作的若干意见》
C. 《中共中央关于制定国民经济和社会发展第十个五年计划的建议》
[多选题]试车线遇雨雪、大雾等恶劣天气时，待天气好转至不影响瞭望时，再恢复调试作业，（）必须向车间主任报备。
A.A、停止调试作业
B.B、调车作业
C.C、恢复调试作业
D.D、动车
[多项选择]社会工作传统的三大方法是（）。
A. 个案工作
B. 案例工作
C. 小组工作
D. 群体工作
E. 社区工作
[填空题]I would have brought you the CD you asked for __________________ (如果我没有忘记的话).
[多选题]稀释降毒。用于处置可溶于水的危险化学品事故。利用( )、( )稀释和降毒,利用水幕隔离事故现场,控制事故区域。( )
A.喷雾水流
B.开花水流
C.直流
D.水幕墙
[单选题] 熄灭直流电弧，常采取的途径是( )。
A.使电弧拉长和强冷的方法
B.使电弧扩散
C.复合
D.窄缝灭弧
[判断题]行政赔偿义务机关在规定期限内未作出是否赔偿的决定，赔偿请求人可以自期限届满之日起六个月内，向人民法院提起诉讼。
A.正确
B.错误
[多选题] 系统运行中，与交流电压二次回路有关的安全自动装置主要有如下几类：（ ）等。
A.振荡解列；
B.备用电源自投；
C.高低压解列；
D.低压切负荷。
[判断题] H×D3型电力机车主变压器,采用上挂安装,强迫导向油循环风冷方式。( )
A.正确
B.错误
[单选题]水准仪的基本操作程序是（ ）。
A.安置一粗平一瞄准一精平一读数
B.安置一精平一瞄准一粗平一读数
C.安置一瞄准一粗平一精平一读数
D.安置一瞄准一精平一粗平一读数
