热门试题:
[单选题]AC009热处理时应力小、变形轻微,适用于形状复杂的小零件的淬火方法是()。
A.等温淬火法
B.分级淬火法
C.单液淬火法
D.局部淬火法
[判断题]降低燃料中硫含量,能有效降低烟气中二氧化硫排放。
A.正确
B.错误
[单项选择]两样本均数比较时,分别取以下检验水准,所犯第二类错误最小的是
A. α=0.05
B. α=0.01
C. α=0.10
D. α=0.20
E. 据此不能推断
[单项选择]对静息电位的叙述,错误的是()
A. 由K+外流导致,相当于K的平衡电位
B. 膜内电位较膜外为负
C. 其数值相对稳定不变
D. 各种细胞的静息电位是相等的
E. 细胞处于极化状态
[单选题]美国雷达生命探测仪雷达有一个1GB.储存卡可能储存超过( )小时的数据。易
A. 40
B. 50
C. 60
D. 70
[多选题]关于环境保护说法正确的是()。
A.施工后尽可能恢复植被
B.尽可能少占耕地
C.导引展放作业尽可能采用人工放线
D.严格控制基面开挖
E./
F./
[多选题]贷款停息时,系统自动计算出上一个___至停息日期间的利息并计入___。
A.结息日
B.撤销停息日期
C.待入账正常息
D.不入账正常息
[单项选择]CareerBuilder. com now offers the most functional and easy-to-use online job search for Science & Biotech jobs. In fact, there are so many ways to search for Science & Biotech jobs on CareerBuilder, com that you’ll be able to get the results you want quickly and easily !
At CareerBuilder. com we combine the power of new search technology with top-notch products and services to give you full control over the Science & Biotech job search process. We offer many ways to get the job searching done.
Search Science & Biotech Jobs by Company: Target your search for Science & Biotech jobs by city or state. Start broad by selecting a desired state, or narrow your search quickly by targeting atop city. With nationwide job opportunities, there are unlimited possibilities.
Search Science & Biotech Jobs by Job Type: Refine your search by selecting a specific job type. If you are certain about your expertise or specialty, narrow your search quickly and search only the jobs that
A. Search the city you want to stay.
B. Search the job you want to do.
C. Search the salary you expect.
D. Search the company you like.
[填空题]铺设细石混凝土地面按______刮平拍实后,稍待收水,即用钢皮抹子预压一遍。要求抹子放平压紧,将细石的______,使地面平整,______现象。
[填空题] You will hear five people talking about their jobs.
For each extract there are two tasks. For Task One, choose problems from the list A—H. For Task Two, choose solutions from the list A—H.
You will hear the recording twice.
[单项选择]Jack told Mary that he ______ what he was doing during the vacation.
A. had just been asked
B. has just asked
C. was just asked
D. just asked
[判断题]电客列车司机在值乘过程中,发现紧急停车信号时,立即采取紧急停车措施。
A.正确
B.错误
[单选题]作业人员在工作中,认为即使偶尔出现一些违章行为也不会造成事故,这是哪种违章操作心理?( )
A.逞能心理
B.麻痹心理
C.侥幸心理
D.冒险心理
[单项选择]在集体之中,通过集体管理的模式,指的是班级管理中的()。
A. 简单联系式
B. 多项联系式
C. 网状联系式
D. 民主平等式
[多选题]人民警察遇有( )情形可以使用警械。
A.殴打他人,经警告无效的
B.拒不交代违法犯罪事实,经警告无效的
C.持枪袭击司法警察,经警告无效的
D.冲击法庭,经警告无效的
[单项选择]“对某一特殊过程(如:一个部门、一条生产线等)负责,成员在一个共同的环境里协同工作”的团队是()
A. 过程改进团队
B. 工作团队
C. 自我管理团队
D. 虚拟团队
[多选题]变、配电所高压设备符合下列条件者,可由单人操作:( )。
A.室内高压设备的隔离室设有遮栏,遮栏的高度在1.7m以上,安装牢固并加锁者。
B.室内高压设备的隔离室设有遮栏,遮栏的高度在2m以上,安装牢固并加锁者。
C.室内高压断路器(开关)的操动机构(操作机构)用绝缘材料与该断路器(开关)隔离或装有远方操动机构(操作机构)者。
D.室内高压断路器(开关)的操动机构(操作机构)用墙或金属板与该断路器(开关)隔离或装有远方操动机构(操作机构)者。
[单项选择]CO2焊如果采用含有硅、锰脱氧元素的焊丝,则( )飞溅已不显著。
A. 焊接工艺参数不当引起的
B. 由极点压力引起的
C. 熔滴短路时引起的
D. 由冶金反应引起的
[单项选择] When I turned 40, my husband staged a surprise party for me. I should never forget my emotion as I entered the restaurant and saw loving friends amid flowers and music and a large display of photographs that spanned my life. I hurried from one table to the next, greeting each guest. Then suddenly at the rear of the room I spotted a gentle, smiling man with snow-white hair and a blue-eyed woman on his arm.
" Mom, Dad, " I gasped. They had flown to Los Angeles from Chicago just hours before. I burst into tears at the sight of these two who, more than anyone else, had taught me that being there for another person is the greatest gift we can give.
A year later, my husband and I were invited to an unusual wedding. Our friends had been married years before in a civil ceremony, and now they wanted to declare again their commitment to one another in a church service. The morning before the wedding, I decided to call my friend and beg off. "Kathe, this is Karen," I began hesitantl
A. politeness
B. virtue
C. honesty
D. friendship
[单项选择]患者,女,35岁,十二指肠球部溃疡病史4年,今午后突然持续性上腹剧痛前来就诊,体查:扪及腹肌紧张,全腹压痛、反跳痛明显,高度怀疑胃肠道穿孔。为明确诊断,下列哪项检查应为首选()
A. 腹部CT
B. 腹部超声
C. 腹部MRI
D. 腹部站立透视
E. 腹部常规X线平片
[单项选择]北京市是个水资源严重缺乏的城市,但长期以来水价格一直偏低。最近北京市政府根据价值规律调高水价,这一举措将对节约使用该市的水资源产生重大的推动作用。为使上述议论成立,以下哪项必须是真的 I.有相当数量的浪费用水是因为水价格偏低而造成的。Ⅱ.水价格的上调幅度一般地足以对浪费用水的用户产生经济压力。Ⅲ.水价格的上调不会引起用户的不满。
A. I、Ⅱ和HI
B. 仅I和Ⅱ
C. 仅I和In
D. 仅Ⅱ和Ⅲ
[单选题]矿山、建筑施工单位和易燃易爆物品、危险化学品、放射性物品等危险物品的生产、经营、储存、使用单位和( )以上的其他生产经营单位应当组织专家对本单位编制的应急预案进行评审。
A.中型规模
B.小型企业
C.微型企业
[单选题]实际操作训练时,遵守教练场安全管理规定,不能在训练场( )。
A.A.曲线行驶
B.B.直角转弯
C.C.倒车入库
D.D.追逐打闹
[判断题]液体储罐燃烧形势不包括地面流淌火。( )
A.正确
B.错误
[单项选择]下列动物中属于两辐对称体制的是()。
A. 海葵
B. 薮枝螅
C. 海月水母
D. 海蛰
[单项选择]在育种工作中,对显性作用小环境变异大的性状,最好的选择方案是()。
A. 晚代,个体选择
B. 晚代,系统选择
C. 早代,系统选择
D. 早代,个体选择
[判断题] 5 金某在为某国间谍组织窃取、刺探我国国家秘密、情报时被抓获,侦查机关决定对其监视居住。因其在当地有住处,故必须在其住处执行监视居住。
A.正确
B.错误
[判断题]根据《大型飞机公共航空运输承运人运行合格审定规则》,如果驾驶舱和客舱有门分隔的话,在飞行期间,机长有义务关闭并锁定该门。
A.正确
B.错误
[简答题] The vast expanse of the United States of America stretches from the heavily industrialized, metropolitan Atlantic seaboard across the rich flat farms of the central plains, over the Rocky Mountains to the fertile west coast, then halfway across the Pacific to the balmy (温和的) island-state of Hawaii. The American scene awes the viewer with both its variety and size. The continental United States (not counting outlying Alaska and Hawaii) measures, 4,500 kilometers from its Atlantic to Pacific coasts, 2,575 kilometers from Canada to Mexico. The entire nation (all 50 states) covers an area of 9 million square kilometers and has a population of 220 million people.
The sparsely settled, far-northern state of Alaska is the largest of America’’s 50 states. It is more than two and a half times the size of Sichuan province. Texas, in the southern part of the country, is second in size. Texas is half the size of Alaska.
A land of heavy forests (311 million hectares) and barren desert
[多选题]Ⅰ类修车库应单独建造;Ⅱ、Ⅲ、Ⅳ类修车库可设置在一、二级耐火等级建筑的首层或与其贴邻,但不得与()组合建造或贴邻。(《汽车库》416)
A.甲、乙类厂房,仓库
B.老年人建筑,病房楼及人员密集场所
C.明火作业的车间
D.托儿所、幼儿园、中小学校的教学楼
[多选题]解放战争时期,中间路线鼓吹的主张是
A.必须实现英美式的民主政治
B.不准地主官僚资本家操纵
C.应当实行改良的资本主义
D.不容官僚买办资本横行
[单选题]站内正线与相邻到发线,有列检作业,120 km/h<v≤160 km/h,困难线间最小距离( )mm
A.5500
B.5300
C.6000
D.5000
[单选题]桥梁钢结构物的焊缝的开裂长度≤10%,则此焊缝开裂的损坏评价程度为( ),扣分值为 15 分。
A.无
B.少量
C.一般
D.严重
[判断题]线路金具是指连接和组合线路上各类装置,以传递机械、电气负荷以及起到某种防护作用的金属附件。( )
A.正确
B.错误
[单选题]我国传统的饮食习惯有哪些特点( )。
A.谷类为主
B.动物性食物为主
C.高蛋白
D.低糖
E.低膳食纤维
F.:A
G.底端
H..下列哪项不属于《中国居民膳食指南》的内容( )。
[判断题]财产清查制度是通过定期或不定期对各项财产物资进行实地盘点和对库存现金、银行存款、债权债务进行清查核实的一种制度。( )
[单选题]应急救援人员经培训合格后,方可参加应急救援工作。( )
A.正确
B.错误
[单选题]公安机关在调查取证时,人民警察不得少于( ),并应当向被调查取证人员表明执法身份。
A.1人
B.2人
C.3人
D.4人
[单项选择]门静脉的正常压力约在()之间。
A. 0~1、2Kpa(0~13cmH2O)
B. 1、27~2.35Kpa(13~24cmH2O)
C. 2、35~2、94Kpa(24~30cmH2O)
D. 2、94~4、90Kpa(30~50cmH2O)