热门试题:
[单选题]大学生通过驾驶学校的培训获得了驾驶证,节日租车外出,出了车祸如何确定责任?()
A.视具体情况负相应责任
B.不负赔偿责任
C.由保险公司负一切责任
D.只负民事责任,不负刑事责任
[单项选择]急性胰腺炎诊断中,不正确的是()。
A. 血清淀粉酶在发病后1~12h开始升高
B. 血清脂肪酶在发病后24~48h开始升高
C. 血清淀粉酶值高于128Winslow单位
D. 血清淀粉酶值高低与病情轻重呈正比
E. 尿淀粉酶在发病后12~24h后上升
[填空题]内部审计应有效履行审计职责,实现审计工作对各所属单位及各风险领域的( );
[判断题]在配电站的带电区域内或临近带电线路处,禁止使用金属梯子。
A.正确
B.错误
[单选题]跨度在*( ).米及以上的钢梁,桥上线路应设置上拱度。(A、3、A)[020101]
A.30
B.40
C.50
D.60
[单项选择]蛋白质分子的一级结构概念主要是指:()
A. 组成蛋白质多肽链的氨基酸数目
B. 氨基酸种类及相互比值
C. 氨基酸的排列顺序
D. 二硫键的数目和位置
E. 肽键的数目和位置
[多选题]用户无法回单可能是哪些原因
A.非付费手机号绑定
B.设备类型“室内”、“室外”选择错误
C.设备串码不匹配
D.录入手机号错误
[单项选择]类风湿因子(RF)是一种()
A. 感染性抗原
B. 抗原抗体复合物
C. 自身抗体IgM
D. 抗核抗体
E. 可激活补体
[单项选择]左心衰竭晚期的症状是 ()
A. 劳力性呼吸困难
B. 咳粉红色泡沫痰
C. 端坐呼吸
D. 咳嗽、咳痰
E. 夜间阵发性呼吸困难
[判断题]《普速铁路行车组织规则》(错CG/01-2018)规定动车组以外的旅客列车部分载客车辆未停靠站台且无法再次移动列车,车站值班员要做好列车进路防护,组织车站、列车客运人员,有序引导旅客由停靠站台的车厢乘降,严禁旅客在未停靠站台的车厢乘降。
A.正确
B.错误
[单选题]《煤矿安全规程》规定:不用装设局部接地极的地点有()。
A.采区变电所
B.低压配电点
C.低压电缆的金属连接装置
D.单独装设的高压电气设备
[判断题]严禁用推土机推石灰、烟尘等粉尘物料和用作碾碎石块的作业。
( )
A.正确
B.错误
[多选题]信号表示器分为道岔、( )、( )、发车、发车线路、调车及( )表示器。
A.进路
B.脱轨
C.车挡
[填空题]常用的机油压力表有()、()和()三种。
[单选题]在额定参数下,进行汽轮机高中压主汽门严密性试验,当高中压主汽门全关时,转速下降至( )时为合格。
A. 2000r.p.m;
B.1500 r.p.m;
C.1000 r.p.m;
D.800 r.p.m;
[单选题]在道岔静态检查中,导曲线下股高于上股的计划维修限值为()mm。
A.0
B.1
C.2
D.3
[单项选择]The passage is mainly concerned with ______.
[简答题]简述污泥膨胀的定义及其最主要的解决方法。
[单项选择]交流电的摆脱电流约为()
A. 1mA
B. 5mA
C. 10mA
D. 15mA
[单项选择]
Like many other aspects of the computer age, Yahoo began as an idea, (1) into a hobby and lately has (2) into a full-time passion. The two developers of Yahoo, David Filo and Jerry Yang, Ph. D candidates (3) Electrical Engineering at Stanford University, started their guide in April 1994 as a way to keep (4) of their personal interest on the Internet. Before long they (5) that their homebrewed lists were becoming too long and (6) . Gradually they began to spend more and more time on Yahoo.
During 1994, they (7) yahoo into a customized database designed to (8) the needs of the thousands of users (9) began to use the service through the closely (10) Internet community. They developed customized software to help them (11) locate, identify and edit material (12) on the Internet. The name Yahoo is (13) to stand for "Yet Another Hierarchical Officious Orale", but Filo and Yang i
A. exchanged
B. shank
C. sold
D. converted
[单项选择]在计算机语言中有一种逻辑运算,如果两个数同一位上都是0时,其和为0;一个为0、一个为1时或两个都是1时,其和为1。那么()。
A. 如果和为1,则两数必然都是1
B. 如果和为0,则两数必然都为0
C. 如果和为0,则两数中可能有一个为1
D. 如果和为1,则两数中至少有一个为0
[填空题]
加强取暖设备电线路和插座、危险场所的日常监督检查和作业人员劳动纪律的宣传教育,防止触电、<( )> 。
[单项选择]Questions 6 to 10 are based on the following passage:
Nonverbal (非语言的) communication has to do with gestures, movements and close-ness of two people when they are talking. (78) The scientists say that those gestures, movements and so on have meaning which words do not carry.
For example, the body distance between two speakers can be important. North Ameri-cans often complain that South Americans are unfriendly because they tend to stand close to the North American when speaking, while the South American often consider the North American to be "cold" or "distant" because he keeps a greater distance between himself and the person he is speaking to. The "eye contact" provides another example of what we are calling nonverbal communication. Scientists have observed that there is more eye contact between people who like each other than there is between people who don’t like each other.
(79) The length of time that the person whom you are speaking to looks a
A. is a method often used by people who cannot speak
B. can tell something that words cannot
C. can be used to talk with people who cannot bear
D. is less used than words
[判断题]多伦县卉原商厦位于多伦大街与西仓路路口西。
A.正确
B.错误
[单选题]《煤矿安全规程》规定,掘进巷道必须采用( )。
A.局部通风机通风
B.全风压通风
C.局部通风机或全风压通风
D.风筒导风
[单项选择]胃溃疡的临床特点是()
A. 多见于青壮年
B. 多发于球部
C. "O"型血者患病率比其他血型高
D. 餐后腹痛明显,至下次进餐前消失
E. 穿孔发生率高于十二指肠溃疡
[判断题]二次设备箱体应可靠接地且接地电阻应满足要求。
A.正确
B.错误
[判断题]门禁锁具的供电电压为220V
A.正确
B.错误
[判断题]站用交流电源柜母线电压指示正常,所用交流电压相间值应不超过420V、不低于380V,且三相不平衡值应小于10V。三相负载应均衡分配。
A.正确
B.错误
[单项选择]水泥包装袋上的P.C32.5R,其中32.5表示的是。()
A. 32.5天凝固
B. 32.5天强度完全发挥出来
C. 32.5Kg
D. 32.5MPa
[多项选择]()是改革传统的典型表现。
A. “曲沃代翼”
B. 晋献公时代新的政治举措
C. 晋文公时代新的政治举措
D. 异性卿大夫改革
[单项选择]流体在一直管内流动,管线上有一个阀门,关小该阀门时,()。
A. 阀前(上游)流体压强升高,阀后(下游)流体压强也升高
B. 阀前(上游)流体压强升高,阀后(下游)流体压强降低
C. 阀前(上游)流体压强降低,阀后(下游)流体压强也降低
D. 阀前(上游)流体压强降低,阀后(下游)流体压强升高
[单选题]下列哪种物质可经皮肤进入人体损害健康? ( )
A.汞
B.尘土
C.碳