热门试题:
[判断题]立体形状分为几何形、自然形和偶然形。( )
A.正确
B.错误
[单项选择]甲曾将自己的房屋赠与给乙,乙得房以后,因与甲的用水纠纷,将甲殴打致伤。甲子丙为此主张撤销对乙的赠与。以下表述正确的是( )。
A. 甲享有对乙的赠与撤销权
B. 如甲不主张对乙的赠与的撤销权,甲子丙可主张对乙的赠与撤销权
C. 甲如享有对乙的撤销权必须在6个月内行使
D. 甲不享有对乙的赠与撤销权
[单项选择]
开展全国口腔健康调查时用
A. 普查
B. 抽样调查
C. 预调查
D. 捷径调查
E. 问卷调查
[单选题]四肢出血用止血带连续阻断血液不应超过
A.3小时
B.1小时
C.2小时
D.30分钟
E.4小时
[多选题]检修作业,若需将盖板取下,应( )。
A.设临时围栏
B.设置警示标识
C.夜间还应设黄灯示警
D.夜间还应设红灯示警
[多选题]甲去商店买东西,售货员乙误将单价为400元的商品以40元的价款卖于甲,则下列说法正确的是
A.因为是乙的失误导致的,故甲有权以40元获得该商品
B.商品真实价款是400元,故甲不能以40元而获得其所有权
C.甲构成不当得利,应该补足价款或者退还原物
D.可将乙的行为视为赠与,故甲不构成不当得利
[单项选择]急性阑尾炎继发局限性腹膜炎的处理方法中下列哪一项不正确()
A. 应早期手术
B. 术中尽量吸净腹腔内液体
C. 用甲硝唑冲洗病灶
D. 盲肠缝合不牢固时,可放置引流
E. 引流管放置7~10天
[单选题]热菜造型的艺术要求是()。
A..精雕细刻
B..成品色、形、器皿达到和谐统一
C..成品明油亮芡
D..强调菜肴的芡汁量、浓稠度和油量
[单选题]CRH5型动车组动力轮对为动力转向架的( )轴
A.2
B.2,3
C.1
D.1,4
[判断题]电磁阀均为防爆型的( )
A.正确
B.错误
[多选题] 火灾报警主要有哪几种类型 ( )
A.手动报警按钮
B.双波长火焰探测器
C.温感报警器
D.烟感报警器
[单选题]水平轴风力发电机组的发电机通常装备在地而上。(1.0分)
A.对
B.错
[多选题]许可开始工作的命令,应通知工作负责人。其方法可采用:
A.现场许可
B.当面许可
C.远程许可
D.就地许可
E.电话许可
[简答题]1以下属于国网公司Ⅰ类严重违章的是------------。
[单项选择]小儿肺炎的护理措施哪项不妥
A. 鼓励患儿多饮水,防止痰液黏稠不易咳出
B. 雾化吸入稀释痰液
C. 输液时要控制液量和速度
D. 喘憋较重时镇静平卧
E. 严密观察病情及时发现并发症
[单项选择]患病后的心理即刻反应期不包括()
A. 心理冲突期
B. 心理休克期
C. 心理抑郁期
D. 重新适应期
E. 退让期
[单项选择]Taking a nap is frowned upon by many people and is viewed as fondness for the elderly and children. Mention nap and you could be seen as lazy, depressed and unwilling to work. However, taking a nap is one of the best but most underused tools for busy people to ease weariness. The majority of people experience drowsiness in the afternoon and notice their work efficiency and mood starting to slip and taking a nap will help combat this.
The results of research suggest that taking a nap can make you more alert, reduce stress and improve cognitive function compared to those who working all day without rest. A mid-afternoon nap means that productivity can last long into the night. Researchers at NASA found that a 30- minute full nap increased cognitive function by 40%. The volunteers on the tests found that their memory improved as well as experiencing an increase in concentration. Those who didn’t nap would score lower on IQ test than those who did (after a day of work).
If yo
A. Function of nap
B. Nap and work
C. Nap and caffeine
D. Nap and busy people
[多选题]以下对粗集料洛杉矶磨耗试验描述正确的是()。
A. 测定标准条件下粗集料抵抗摩擦. 撞击的能力
B. 本方法适用于各种等级规格集料的磨耗试验
C. 算粗集料洛杉矶磨耗损失时,结果精确至0.1%
D. 计算结果用洛杉矶磨耗损失Q表示
[单选题]转换设备中的各种传动拉杆、表示连接杆及导管等的螺纹部份的内、外调整余量应不少于( )mm。
A.5
B.8
C.15
D.10
[单选题]高压断路器的机械寿命一般在(____)次以上。
A.20
B.200
C.2000
D.20000
[单项选择]( )是商业银行从事资产业务的基础。
A. 派生存款
B. 原始存款
C. 活期存款
D. 定期存款
[填空题]已知北京的地理纬度为北纬40度,那么在春分日、秋分日、冬至日及夏至日北京正午时太阳的地平高度分别为()、()、()、()。
[判断题]在岗期间违规使用手机、平板、智能手表、智能手环等电子设备属于客运服务红线。
A.正确
B.错误
[单项选择]如果一年里全社会用现金支付的销售商品总量为8000亿件,平均价格水平为9元,这一年里货币平均周转6次。那么这一年里货币发行量应该为()亿元。如果这一年实际发行了24000亿元纸币,这时的一元相当于()元,这可能会引起()
A. 12000 ;0.5;通货膨胀
B. 12000 ;1;通货紧缩
C. 24000 ;1.5;通货膨胀
D. 24000 ;1;通货紧缩
[单项选择]影响外周阻力的主要因素是
A. 血液粘滞性
B. 红细胞数
C. 血管长度
D. 小动脉口径
E. 大动脉弹性
[单选题] 检验三相无功功率表的无功功率因数影响时,如不特别指明,应在()负载下检验。
A.cosφ=0.5(容性)
B.cosφ=0.5(感性)
C.sinφ=0.5(容性)
D.sinφ=0.5(感性)
[多选题]冬季,道岔尖轨与基本轨不密贴的原因及应采取的措施是( )。
A.基本轨与尖轨间有积雪,致使尖轨与基本轨不密贴
B.尖轨与基本轨之间的冰块卡住
C.下雪时应及时清扫,使尖轨与基本轨之间无积雪,无冰块和其他杂物
D.合理使用到发线
[单项选择]
Like many other aspects of the computer age, Yahoo began as an idea, (21) into a hobby and lately has (22) into a full-time passion. The two developers of Yahoo, David Filo and Jerry Yang, Ph. D candidates (23) Electrical Engineering at Stanford University, started their guide in April 1994 as a way to keep (24) of their personal interest on the Internet. Before long they (25) that their homebrewed lists were becoming too long and (26) . Gradually they began to spend more and more time on Yahoo.
During 1994, they (27) yahoo into a customized database designed to (28) the needs of the thousands of users (29) began to use the service through the closely (30) Internet community. They developed customized software to help them (31) locate, identify and edit material (32) on the Internet. The name Yahoo is (33) to stand for "Yet Another Hierarchical Officious Oracle&quo
A. average
B. normal
C. ordinary
D. equal
[单选题]对于YNdll接线的变压器,在d侧的线电流中不会出现( )。
A.2次谐波
B.3次谐波
C.5次谐波
D.7次谐波
[多选题]当验明检修的低压配电线路、设备确已无电压后,至少应采取以下措施之一防止反送电:()。
A.装设遮栏
B.所有相线和零线接地并短路
C.绝缘遮蔽
D.在断开点加锁、悬挂“禁止合闸,有人工作!”或“禁止合闸,线路有人工作!”的标示牌
[填空题]
The continental United States will face more extreme
temperatures during the next century and worse rainfall along its Gulf Coast
which has been ravaged by hurricanes this year, according to a climate study.
The study warned that{{U}} (36) {{/U}}gases will likely swell to twice
their{{U}} (37) {{/U}} levels by the century’s end.
"Imagine the weather during the hottest two weeks of the year," lead{{U}}
(38) {{/U}}Noah Diffenbaugh said, referring to northeast United
States. "The area could experience temperatures in that range{{U}} (39)
{{/U}}for periods of up to two months by century’s end," he said.
Researchers claimed the study, run on supercomputers, is the most
comprehensive{{U}} (40) {{/U}} model to date. It{{U}} (41)
{{/U}}the southwest United States could endure a 500 percent increase in hot
events, leaving less water for the growing population, that the Gulf Coast
region would {{U}} (42) {{/U}} more rainfall in
[单选题]关于病毒的描述,下列错误的是:( )
A.是一类非细胞形态的微生物
B.只能在活细胞内复制增殖
C.仅具有一种类型的核酸
D.不能通过除菌滤器
[单项选择]艾滋病可出现()
A. 发热、全身不适、头痛、厌食、恶心、肌痛、关节痛和淋巴结肿大,类似血清病的症状。此时血液中可检出HIV及P24抗原。一般症状持续3~14d后自然消失
B. CD4+T淋巴细胞明显减少和并发严重机会性感染,但通过各种检查没有发现HIV-1或HIV-2感染
C. 主要表现为除腹股沟淋巴结以外,全身其他部位2处或2处以上淋巴结肿大。一般持续肿大3个月以上
D. 临床上没有任何症状,但血清中能检出HIV以及HIV核心蛋白和包膜蛋白的抗体,具有传染性:可持续2~10年或更长
E. 发热、乏力、不适、盗汗、厌食、体重下降,慢性腹泻和易感冒等症状
[简答题]
某城市道路工程,基层采用石灰稳定土,面层采用水泥混凝土。在施工过程中的部分质量控制要点如下。
1.对基层施工的控制要点:
(1) 基层土颗粒最大粒径不超过40mm。
(2) 基层细粒土最大粒径不大于l0mm。
(3) 用12t以上压路机碾压,先重型后轻型。
(4) 严禁用薄层贴补的办法找平基层。
(5) 养生采用干养,养生期不宜小于7d。
2.对面层施工的控制要点:
(1) 水泥采用不低于32.5级的普通硅酸盐水泥。
(2) 碎(砾)石选用最大粒径不超过50mm。
(3) 设计混凝土配合比时,以抗折强度设计,以抗压强度检验。
(4) 混凝土搅拌的最长时间不得超过最短时间的五倍。
问题
水泥混凝土路面施工中选用的水泥应具有哪些特性?