热门试题:
[单项选择]系统允许每个月( )记账。
A. 一次
B. 两次
C. 最多三次
D. 多次
[单选题](判断题)救护人员可以抓触电者的鞋,把其拉离电源。
A.正确
B.错误
[单选题]正弦量可以用一个旋转向量来表示向量的模对应于正弦量的( )。
A.最大值
B.有效值
C.平均值
D.瞬时值
[单选题]患者,女性,25岁,发热3日,今晨起呼吸困难,鼻导管吸氧未见好转。查体:体温39℃,脉搏110次/分呼吸28次/分,血压110/70mmHg。双肺闻及细湿罗音及管状呼吸音,动脉血气分析:pao250mmHg.paco245mmHg,胸部X线:双肺可见密度增高的大片阴影。临床诊断为急性呼吸窘迫综合征。最有效的通气方式是 (1分.)
A.间歇正压通气
B.间歇指令通气
C.压力支持通气
D.持续气道正压通气
E.呼气末正压通气
[单选题]冷却操作时,冷却介质不能( ),否则会造成积热量积聚,系统温度压力骤增,引起爆炸。( )
A. 持续
B. 中断
C. 温度高
[单选题]使用金属外壳的电气工具时应戴()。
A.帆布手套
B.线手套
C.绝缘手套
D.皮手套
[判断题]发动手台机动泵时水泵内必须有足够的水,严禁无水运转。()
A.正确
B.错误
[判断题]煤气管道压力过低,容易发生爆炸事故。
A.正确
B.错误
[单选题]飞机上应配备经批准的急救箱和应急医疗箱。
A.是
B.否
[单选题]请阅读短文,完成此题。
Polyester (聚酯 ) is now being used for bottles. ICI, the chemicals and plastics company, believes that it is now beginning to break the grip of glass on the bottle business and thus take advantage of this huge market.
All the plastics manufacturers have been experiencing hard times as their traditional products have been doing badly world-wide for the last few years. Between 1982 and 1984 the Plastics Division of ICI had lost a hundred and twenty million dollars, and they felt that the most hopeful new market was in packaging, bottles and cans.
Since 1982 it has opened three new factories producing "Melinar", the raw material from which high quality polyester bottles are made.
The polyester bottle was born in the 1970s, when soft drinks companies like Coca Cola started selling their drinks in giant two-liter containers. Because of the build-up of the pressure of gas in these large containers, glass was unsuitable. Nor was PVC, the plastic which had been used for bottles since the 1960s, suitable for drinks with gas in them. A new plastic had to be made.
Glass is still cheaper for the smaller bottles and will continue to be so, unless oil and plastic become much cheaper, but plastic does well for the larger sizes.
Polyester bottles are virtually unbreakable. The manufacturers claim they are also lighter, less noisy when being handled, and can be reused. Shopkeepers and other business people are unlikely to object to a change from glass to polyester, since these bottles mean few breakages, which are costly and time-consuming. The public, though, have been more difficult to persuade. ICI's commercial department is developing different bottles with interesting shapes, to try and make them visually more attractive to the public.
The next step could be to develop a plastic which could replace tins for food. The problem here is the high temperatures necessary for cooking the food in the container.
Plastics of various kinds have been used for making bottles__________.
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A.since 1982
B.since the 1970s but only for large bottles
C.since the 1960s but not for liquids with gas in them
D.since companies like Coca Cola first tried them
[单选题]票据上可以记载《票据法》和《支付结算办法》规定事项以外的其他出票事项,但是该记载事项不具有票据上的效力,银行不负审查责任。
A.
B.
C.
D.
E.
F.略
G.略
[单选题]允许速度大于160 km/h的正线线路,临时补修轨距的容许偏差管理值为( )mm。(A 、3、A)[020102]
A.+6、-4
B.+4、-2
C.+2、-2
D.+6、-2
[多选题]不宜在汛期或台风期间安排( )的检修。
A.A.技术供水泵
B.B.检修排水泵
C.C.渗漏排水泵
D.D.雨水排水泵
[判断题]车床的主运动是刀具的直线运动。
A.正确
B.错误
[单项选择]面对问题情境,不墨守陈规,随机应变,触类旁通的是()。
A. 流畅性
B. 求异性
C. 独创性
D. 变通性
[单项选择]低位室间隔缺损位于()
A. 室间隔肌部
B. 室间隔膜部、室上嵴上方
C. 室上嵴下方
D. 肺动脉瓣下
E. 主动脉瓣下
[单项选择]下列哪项是新生儿筛查的目的()
A. 降低人口数量,提高人口素质
B. 减少缺陷儿的出生
C. 使有缺陷儿得到及时诊断和治疗
D. 预防胎儿发生神经管缺陷
E. 了解人群遗传病发病率
[单选题] 以下主体,可以成为行政立法主体的是( )
A.依法行使职权的公务员
B.国家行政机关
C.被授权的组织
D.其他组织
E.行政机关可以因当事人的申辩而加重对其行政处罚
[多选题]车站发生火灾,车站值班员向行车调度员进行报告时应准确说明( )
A.起火地点
B.估计起火原因
C.影响范围
D.是否影响行车安全
[单项选择]下述各点,哪项不是固有牙槽骨的特征 ()
A. 位于牙槽窝内壁
B. 在X线片上显示围绕牙根的黑色透射线
C. 多孔的骨板
D. 属于密质骨
E. 由平行骨板与牙周膜穿通纤维构成
[单选题]下列适宜制作扒菜的原料是( )。
A.菜心
B.黄瓜
C.茄子
D.西红柿
[填空题]在SQL语言中,为了修改基本表的结构,可以使用语句 【8】 。
[单选题]中队纵队时,位于一分队长前,后列中央为()
A.中队(站)长
B.政治指导员
C.副中队(站)长
D.中队(站)长助理
[单选题]营业机构对于收到的清算业务查询信息,打印( )按照查询查复处理程序进行处理后,必须在当日营业终了前进行查复。
A.查询书
B.查复书
C.业务凭证
D.交易明细
[判断题]4.42.第43题
紫外测试利用紫外成像仪接受放电产生的太阳日盲区内的紫外信号,经过处理与可见光图像叠加,从而确定电晕位置和强度。
A.正确
B.错误
[单项选择]某机构想保藏霍乱的菌种,需要经过以下哪个部门的批准()。
A. 县级以上人民政府卫生行政部门
B. 县级以上人民政府
C. 省级以上人民政府卫生行政部门
D. 省级以上人民政府
E. 国务院
[单项选择]下列关于入浮浓度的说法正确的是()。
A. 入浮浓度越低越有利于浮选分选
B. 入浮浓度超过200g/l时,充气性能变差
C. 入浮浓度越高越有利于浮选分选
D. 入浮浓度越高,浮选精煤灰分越低
[单项选择]下列哪种体征是骨折的专有体征()
A. 肿胀与瘀斑
B. 疼痛与压痛
C. 功能障碍
D. 反常活动
E. 以上都不是
[多选题]对于金融机构来说,个人贷款的意义包括()
A.开展个人贷款业务可以为商业银行带来新的收入来源
B.对启动、培育和繁荣消费市场起到了催化和促进作用
C.对商业银行调整信贷结构,提高信贷资产质量、增加经营效益以及繁荣金融业起到了促进作用
D.个人贷款业务可以帮助银行分散风险
[单选题]站用交流电源系统精益化评价细则中要求备自投动作后,监控后台应有( )。
A.事件信息
B.声音
C.报警
D.准确可靠
[单选题] 若发生的事件/事故为大修相关,目击者应向( )报告。
A.消防队
B.工程副总指挥
C.生产副总指挥
D.公司总经理
[判断题]犯罪的时候不满18周岁被判处5年有期徒刑以下刑罚的人,在就业的时候,免除前科的报告义务。
A.正确
B.错误
[单选题]线路停电检修,工作许可人应在线路可能受电的各方面(含变电站、发电厂、环网线路、分支线路、用户线路和配合停电的线路)都已停电,并挂好()后,方能发出许可工作的命令。
A.安全警示牌
B.工作接地线
C.个人保安线
D.操作接地线
[单项选择]
阅读下面短文,从短文后所给各题的四个选项(A、B、C、和D)中选出能填入相应空白处的最佳选项。
The lecture on smoking was over at
last. As we boys were rushing towards the playground, Jim slipped by the table.
The watch, which Mrs. smith had {{U}} (36) {{/U}} on the table as she
started her lecture, disappeared. We were {{U}} (37)
{{/U}} to go back for class again when the headmaster called us
{{U}} (38) {{/U}} and said, "I’ve got a little {{U}} (39) {{/U}}
for you boys. Mrs. Smith has just lost her watch on the playground. This kind of
thing has happened {{U}} (40) {{/U}} , she says it just {{U}} (41)
{{/U}} off her wrist (手腕). So, look around for it, will you {{U}} (42)
{{/U}} if you’re clever enough to find it. Let’s {{U}} (43) {{/U}} it
clear the boys who does {{U}} (44) {{/U}} will get a useful reward
(奖赏)." At once we started looking for the watch. Everybody
A. Say B. See C. Guess D. Check
[多选题]精心操作电器设备,保持作业现场整洁,坚持( )。 A.文明生产 B.不违章指挥 C.不违章操作 D.不违反劳动纪律
[单项选择]明火作业前应办理(),确保安全后方可作业 A. 培训证 B. 动火许可证 C. 工作证 D. 消防证
[判断题]所谓电子商场就是指发布产品信息并且接受定单的站点。()
[简答题]“八佾舞于庭,是可忍也,孰不可忍也”反映谁的礼乐观?
[单项选择]在煎煮中药时,需"文火"久煎的是()。 A. 解表剂 B. 泻下剂 C. 芳香类药 D. 补益剂 E. 和解剂
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