热门试题:
[判断题]发生器下灰和发生器压力连锁（ ）
A.正确
B.错误
[单项选择]电缆的缆芯色谱可分为普通色谱和（）两大类。
A. 单色谱
B. 全色谱
C. 多色谱
D. 双色谱
[简答题]The No. 3 bus will take you there.
You will ______ the No. 3 bus to ______ .
[单选题]在进口水产品现场查验过程中，发现存在包装破损或者标识存在问题的情况，可以在海关机构的监督下由________进行整固或重新包装标识。
A.收货人
B.发货人
C.出口商
D.生产商
[多选题]漏电探测仪严禁直接接触（ ）等。
A.电源
B.泄漏点
C.水
D.导电液体
[判断题]沥青混合料的强度是指其抵抗外力破坏的能力，由沥青与集料间的结合力构成。
A.正确
B.错误
[判断题]正线是指连接车站并贯穿或直股伸入车站的线路。（ ）
A.正确
B.错误
[判断题]根据实际情况，按事故的性质、类型、影响范围、严重后果分等级地制定相应的预案。
A.正确
B.错误
[多选题]根据《治安管理处罚法》的规定，单位违反治安管理的，应予处罚的是()。
A.直接负责的主管人员
B.其他直接责任人员
C.单位
D.单位法定代表人
[多选题]电气作业人员的基本条件为
A.经县级或二级甲等及以上医疗机构鉴定，无职业禁忌的病症，至少每两年进行一次体检，高处作业人员应每年进行一次体检
B.应具备必要的电气、安全及相关知识和技能，按其岗位和工作性质，熟悉本规程的相关部分
C.从事电气作业的人员应掌握触电急救等救护法
D.从事电气作业相关行业2年以上工作经历
[多选题]电气火灾后，应先切断电源再救火，切断电源正确的方法可以是（）
A.A：用绝缘工具拉闸
B.B：先拉断路器再拉隔离开关
C.C：先拉隔离开关，有明显断电后再拉断路器
D.D：剪断非同相电线应在不同点位
[多选题]除尘系统设备包括下列哪项（）。
A.风机本体
B.吸尘罩、管道
C.螺旋机
D.除尘器
[单选题]题目:企业从邮局订阅的报刊杂志费列入()科目中核算
A.图书资料费
B.办公费-报刊杂志费
C.其他费用
D.办公费-其他
[判断题]水源卫生防护、水源安全保护、节水塔、水池、山上水槽的进出口也须配备防盗门窗及锁，通风口设置为防止投入异物的方式，确保水质安全。( )（应知应会-《铁路给水管理规程》）
A.正确
B.错误
[单项选择]味精是食品烹调和肉制品加工中常用的鲜味剂，其中的主要成分是（）
A. 谷氨酸钠盐
B. 肌苷酸钠
C. 鸟苷酸钠
D. 肌精
[多选题]在铸铁焊补时,为了得到灰铸铁焊缝,可在焊缝中加入促进石墨化元素,如( )等。
A.镍
B.铜
C.钒
D.碳
E.硅
F.硫
[多选题]发电机的外特性由于调差系数的不同，可分为(____)。
A.正调差特性曲线
B.零调差特性曲线
C.负调差特性曲线
D.无调差特性曲线
[单项选择]
下列各项符合新航路开辟后的影响的是（）
①加强欧洲同亚洲、非洲以及“新发现”的美洲等地的联系，逐渐结束了各地相互孤立的状态
②世界市场的雏形开始出现
③世界贸易中心由原来的大西洋沿岸转移到了地中海地区
④加速了西欧封建制度的解体，促进了资本主义的发展
A. ①③④
B. ①②④
C. ②③④
D. ①②③④
[单项选择] Biotechnology
Biotechnology in one form or another has flourished since prehistoric times. When the first human beings realized that they could plant their own crops and breed their own animals, they learned to use biotechnology. The discovery that fruit juices fermented(发酵) in wine, or that milk could be converted into cheese or yogurt(酸乳酶) or that beer could be made by fermenting solutions of malt(麦芽) and hops(啤酒花) began the study of biotechnology. When the first bakers found that they could make a soft, spongy(多乳的) bread rather than a firm, thin cracker they we’’re acting as fledgling(缺乏经验的) biotechnologists. The first animal breeders, realizing that different physical traits could be either magnified or lost by mating appropriate pairs of animals, engaged in the manipulations of biotechnology.
What then is biotechnology The term brings to mind different things. Some think of developing new types of animals. Others dream of almost unlimite
A. to change the DNA of human beings
B. to produce more milk by increasing the number of cows
C. to increase the functions of various cells and organisms
D. to find new human molecules
[单选题] 断开耐张杆塔引线或工作中需要拉开断路器(开关)、隔离开关(刀闸)时，应先在其( )装设接地线。
A. 两侧
B. 受电侧
C. 送电侧
D. 任意一侧
[单选题]（ ）是指震源到地面（震中）的垂直距离。
A. 震级
B. 震中距
C. 震源深度
D. 烈度
[填空题]Heather is one of the biology student at the 76. ______
university. He is very busy and doesn’t have many free 77. ______
time these days. Heather attend several classes and lectures 78. ______
four days in a week; he has none on Tuesday. But he 79. ______
spends a few hours in lab every Wednesday. He 80. ______
has to do a few of experiments every day. Heather never 81. ______
has enough time to finish everything. There is too much 82. ______
pressure on him to complete all her course requirements. Still 83. ______
he doesn’t have any regrets about choosing biology for 84. ______
his future career. There is no other field that interests in him.85. ______
[单选题]259.工程变更处理是属于（）的内容
A.质量控制
B.进度控制
C.造价控制
D.合同管理
E.信息管理
[填空题]
If you were supposed to be at my house at 6: 00 p.m. for
dinner, but you came at 8: 00 p.m., we would{{U}} (36) {{/U}}think you
were quite impolite. However, if you come from Brazil, the idea of being
{{U}} (37) {{/U}}, or "on time", might mean coming two hours late.
In fact, being "early" or "late" depends on your cultural{{U}} (38)
{{/U}}and no dictionary can give a clear{{U}} (39) {{/U}}of"early"
or "late" because these ideas reflect "social time" rather than real
time.
Even more{{U}} (40) {{/U}}is how people from other
cultures explain their lateness. American students might say they simply had not
cared that they were late. In{{U}} (41) {{/U}}, Brazilians would go out
of their way to explain their lateness in a number of ways—they were delayed by
unforeseen or{{U}} (42) {{/U}}problems, for example. Or they might{{U}}
(43) {{/U}}the reasons of being late to reasons that you might never
think of.
Some American
[单选题] 根据《国务院关于特大安全事故行政责任追究的规定》,市(地、州)、县(市、区)人民政府依照本规定应当履行职责而未履行,或者未按照规定的职责和程序履行,本地区发生特大安全事故的,对政府主要领导人,根据情节轻重,给予降级或者撤职的行政处分;构成玩忽职守罪的,依法追究( )刑事责任。
A.法律责任
B.民事责任
C.刑事责任
D.个人责任
[判断题]在三相电路星形连接的供电系统中，电源的中性点与负载的中性点之间产生的电位差，称为中性点位移。
A.正确
B.错误
[单选题]按照房建设备设施状态评定标准，“主体结构中钢筋混凝土及预应力钢筋混凝土的承重结构有大部分露筋、蜂窝现象”应评为 级。
A.一
B.二
C.三
D.四
[单选题]公文的结尾，通常采用下述形式()。
A.交代制发公文的根据与目的
B.直接点明结论，以阐明制发此文的原因
C.发出号召，提出希望与要求
D.表示敬意、谢意
[单项选择]你渴望结束不得不做的工作吗( )
A. 从不
B. 较少
C. 较多
D. 总是
[单选题]影响全口义齿在口腔中固住的有关因素除外
A.合理的排牙
B.唾液的质和量
C.口腔黏膜的性质
D.颌骨的解剖形态
E.基托的边缘伸展范围、厚薄和形状
[单选题] ( )用于产生大流量、远射程、高强度射流,以扑救大规模、大面积火灾。(中)
A. 直流水枪
B. 空气泡沫枪
C. 水(泡沫)炮
D. 多用水枪
[单项选择]The technology supplied by Motorola is based on ______.
A. Bluetooth features
B. MP3 audio capability
C. Global Positioning System
D. GPRS standard
[单选题]变压器并列运行时, 变比相差不超过( )。
A. ±0.2%
B. ±0.5%
C. ±1%
D. ±1.5%
[单项选择]若名义利率为r，一年内计息m次，年有效利率为ieff，则正确的说法是( )。
A. m越多，ieff与r相差越小
B. m越多，ieff与r相差越大
C. m越多，ieff越小
D. m越少，ieff与r相差越大
[多选题]SD01GG002243电位的计算实质上是电压的计算。下列说法正确的有( )。
A.电阻两端的电位是固定值
B.电压源两端的电位差由其自身确定
C.电流源两端的电位差由电流源之外的电路决定
D.电位是一个相对量
