热门试题:
[判断题]纯电容在交流电路中相当于断路。( )
A.正确
B.错误
[简答题]循环流化床锅炉冷态进行临界流化风量试验时,炉膛应添加床料至床压___。
[多选题]鸣笛礼主要包括以下步骤()。( )
A. 鸣笛车辆在指定位置列队;
B. 指挥员通常以旗语或口令的形式下达指令;
C. 指挥员下达“预备——鸣笛”的旗语或口令后,鸣笛车辆应先鸣笛一长声表示敬礼;
D. 指挥员下达“停”的旗语或口令后,鸣笛车辆迅速停止鸣笛,随后鸣笛两短声表示礼毕。
[判断题] 立井提升钢丝绳,每天必须由专职人员检查一次。()
A.正确
B.错误
[判断题]卡贷宝系统自动停用的可以允许客户经理手工启用。
A.正确
B.错误
[多选题]以出包方式建造厂房,建造过程中发生的下列支出,应计入所建造厂房成本的有()
A.支付给第三方监理公司的监理费
B.建造期间进行试生产发生的负荷联合试车费用
C.建造期间因可预见的不可抗力导致暂停施工发生的费用
D.季节性因素暂停建造期间外币专门借款的汇兑损益
[单项选择]The job as interpreter has the following characteristics EXCEPT __________.
A. funny
B. intrepid
C. dangerous sometimes
D. exciting
[判断题]各单位要把安全风险控制作为“月检查、季考评、半年评估、年度评优”的重要内容,按季对安全风险措施落实情况及成效进行检查评估,并向安委会报告,实现安全管理持续改进。
A.正确
B.错误
[单项选择]客观地反映某一时点的疾病分布以及人群的某些特征与疾病之间的联系,不设专门对照,使用的指标主要是患病率的研究为
A. 现况研究
B. 病例对照研究
C. 队列研究
D. 流行病学实验研究
E. 分析性研究
[单项选择]Due to Ms. Lin's presentation, we could ______ our research into a few areas we had been neglecting before.
A. allocate
B. dilate
C. impress
D. broaden
[填空题]
After its misadventures in 1993. when American marines were driven out of Somalia by skinny gunmen, America has used a long spoon in supping with Somalia’s warlords. This. tike so much else, changed on September 11th. (41)
Clandestine. up to a point: within hours of the arrival in Baidoa of nine closely cropped Americans sporting matching satellite phones and shades, their activities were broadcast. After meeting various warlords, the group inspected a compound that had apparently been offered to them as their future base. They also saw an old military depot. Neither can have been encouraging: the compound has been taken over by war-displaced families, and the depot by thorn-scrub.
America was already convinced of al-Qaeda’s presence in Somalia. It had listed a Somali Islamic group, al-ltihaad al-Islamiya (Islamic Unity), as a terrorist organisation. (42) . It fears that lawless Somalia could become a haven for escapes from Afghanistan.
[单选题]断路器(开关)与隔离开关(刀闸)无机械或电气闭锁装置时,在拉开隔离开关(刀闸)前应( )。
A.确认断路器(开关)操作电源已完全断开
B.确认断路器(开关)已完全断开
C.确认断路器(开关)机械指示正常
D.确认无负荷电流
[单选题]蛋中的脂肪含量约为()。
A.3%~5%
B.7%~10%
C.11%~15%
D.17%~19%
[单选题]土石方在填筑施工时应()。
A.先将不同类别的土搅拌均匀
B.采用同类土填筑
C.分层填筑时需揽拌
D.将含水量大的黏土填筑在底层
[单选题]与电力电缆同通道敷设的低压电缆、非阻燃通讯光缆等应穿入( ),或采取其他防火隔离措施。
A.排管
B.电缆沟
C.电缆隧道
D.阻燃管
[多选题]我国社会主义法律分为 ( ) 两类。
A.常规法律
B.非常规法律
C.基本法律
D.法规
E.非基本法律确定
[单选题]旅客票价是以( )的票价率为基础,按照旅客旅行的距离和不同的列车设备条件,采取递远递减的办法确定的。
A.人/km
B.人/(10 m)
C.人/(100 km)
D.人/m
[判断题]双线区段,在反方向进站信号机至出站道岔的线路上施工,对车站方向,在出站道岔外方基本轨接头处(对向道岔在警冲标相对处)线路上,设置移动停车信号牌(灯)防护。
A.正确
B.错误
[单选题]ATP合成部位在( )
A.线粒体外膜
B.线粒体内膜
C.线粒体膜间腔
D.线粒体基质
E.线粒体内膜F1-F0复合体
[单选题]填用()工作票时,不需要履行工作许可手续。
A.电力线路第一种
B.电力线路第二种
C.带电作业
D.电力电缆第一种工作票
E./
F./
[判断题]人体科学一定要有系统观,中医的发展方向是中医现代化。
[判断题]吸油毡在吸油状态下能长时间保持原来形状,且燃烧处理时产生有害气体较少。
[判断题]车控室的专用电话系统调度分机可以人为选择拨号通话。( )
A.正确
B.错误
[简答题]古代希腊城邦普遍实行________体制,长期分立、________是希腊城邦在政治上的特点。
[简答题]某投资项目第一年初投资5 000万元,第二年初投入使用,从第二年起连续5年每年可获净收入1 400万元。若期末无残值,基准收益率为10%,试计算财务净现值和财务内部收益率,静态投资回收期,并判断该项目在财务上是否可行。
[单选题]对任期内所在单位连续( )被评为基层建设先进单位的主官,应优先提拔使用。
A.2年
B.3年
C.4年
D.5年
[单项选择]上下颌弓的关系位置是指
A. 上、下颌弓的水平位置关系
B. 上、下颌弓的左右位置关系
C. 上、下颌弓的水平与垂直位置关系
D. 上、下颌弓的前后位置关系
E. 以上都对
[单选题]翠竹:高洁
A.牡丹:华贵
B.青松:高山
C.金属:金银
D.青草:植物
[多选题]某研究者在用心理物理法测量感觉阈限时,若他想在测量时,让被试亲自参与,并且更有效地调动被试的积极性,那么他应该采用的方法是()
A.最小变化法
B.平均差误法
C.恒定刺激法
D.调整法
[单选题]16号钩舌
A.16号钩舌
B.17号钩尾框
C.转动套
D.钩舌销
[单项选择]下列()属于非票据结算。
A. 商业汇票
B. 银行本票
C. 汇兑
D. 支票
[单选题]5,6,7,8颈神经前支及第1胸神经前支大部份组成( )
A.颈神经丛
B.臂神经丛
C.腰神经丛
D.骶神经丛
[单选题]高压试验结束时,试验人员应拆除自装的接地短路线,并对被试设备进行检查,恢复试验前的状态,经( )复查后,进行现场清理。
A.
A.检修负责人
B.B.工作许可人
C.C.试验负责人
D.D.运维负责人
[单项选择]属于糖皮质激素的平喘药物是()
A. 氨茶碱
B. 肾上腺素
C. 色甘酸钠
D. 异丙肾上腺素
E. 倍氯米松
[不定项选择题]共用题干
Dangers Await Babies With Altitude
Women who live in the world's highest communities tend to give birth to underweight babies,a new
study suggests.These babies may grow into adults with a high risk of heart disease and strokes.
Research has hinted that newborns in mountain communities are lighter than average.But it wasn't
clear whether this is due to reduced oxygen levels at high altitude or because their mothers are
under-nourished一many people who live at high altitudes are relatively poor compared with those living lower
down.
To find out more,Dino Giussani and his team at Cambridge University studied the records of 400 births
in Bolivia during 1997 and 1998.The babies were born in both rich and poor areas of two cities:La Paz and
Santa Cruz.La Paz is the highest city in the world,at 3.65 kilometers above sea level,while Santa Cruz is
much lower,at 0.44 kilometers.
Sure enough,Giussani found that the average birthweight of babies in La Paz was significantly lower than
in Santa Cruz.This was true in both high and low-income families.Even babies born to poor families in
Santa Cruz were heavier on average than babies born to wealthy families in lofty La Paz."We were very
surprised by this result,"says Giussani.
The results suggest that babies born at high altitude are deprived of oxygen before birth."This may
trigger the release or suppression of hormones that regulate growth of the unborn child," says Giussani.
His team also found that high-altitude babies tended to have relatively larger heads compared with their
bodies.This is probably because a fetus starved of oxygen will send oxygenated blood to the brain in
preference to the rest of the body.
Giussani wants to find out if such babies have a higher risk of disease in later life. People born in La
Paz might be prone to heart trouble in adulthood,for example.Low birth weight is a risk factor for coronary
heart disease.And newborns with a high ratio of head size to body weight are often predisposed to high blood
pressure and strokes in later life.
Giussani has arrived at the conclusion that babies in high-altitude regions are more likely to have heart trouble when they grow up.
A.Right
B.Wrong
C.Not mentioned