热门试题:
[判断题]在管理信息内外网终端设备上启用互联网通信功能应经信息运维单位(部门)批准。 ( )
A.正确
B.错误
[单选题] 津华线K3+186m段至 K3+622m段是使用( )方式穿越海滨高速
A. 定向钻
B. 顶管
C. 涵洞
D. 爆破
[单项选择]制定IEEE802.15.3标准的原因是()。
A. 扩宽蓝牙功能
B. 提升传输速率
C. 提升传输距离
D. 解决与IEEE802.11(无线局域网标准)的共存问题
[多选题]温度一定时,金属导线的电阻()。
A.与长度成正比
B.与截面积成反比
C.与材料的电阻率有关
D.与材料的电阻率无关
[单选题]“传世之宝”业务交易时间为经办网点营业日(节假日除外)的( )。总行可根据实际情况调整交易
时间。
A.8:30-17:30
B.9:00-17:00
C.9:30-16:30
D.9:30-15:30
[单项选择]Answering mobile phone calls while you are at a work meeting is not only discourteous, but it can also destroy the () of the meeting.
A. capableness
B. efficacy
C. facts
D. impression
[单项选择]下列哪项不是慢性胆囊炎的典型临床表现()
A. 嗳气
B. 腹胀
C. 胆绞痛病史
D. 右腰背部隐痛
E. 畏寒高热,黄疸
[判断题]电动卷扬机用完后,可以不切断电源,但要将控制器放到零位,用保险闸自动刹紧,并拉紧跑绳。( )
A.正确
B.错误
[单项选择]选择新技术、新工艺和新材料方案的主要原则是( )。
A. 技术先进
B. 可靠适用
C. 经济合理
D. 质量保证
[判断题]高处作业吊篮悬挂机构前支架可以支撑在女儿墙上、女儿墙外或建筑物挑檐边缘。( )
A.正确
B.错误
[多项选择]()书中明确提到的以下哪二人房中的丫环穿过“青缎掐牙背心”?
A. 贾母
B. 王夫人
C. 宝玉
D. 探春
E. 李纨
[多项选择]多年冻土以逐渐融化状态设计时,地基的变形可以采用( )措施来控制。
A. 加大基础埋深或选择低压缩性土作为持力层
B. 采用保温隔热地板,并架空供热管道及给排水系统
C. 设置地面排水系统
D. 避免人为地加大地基土的融化深度
[单项选择]结构化系统分析与设计中的详细设计包括( )。 Ⅰ.代码设计 Ⅱ.逻辑设计 Ⅲ.输入/输出设计 Ⅳ.模块设计与功能设计 Ⅴ.程序设计 Ⅵ.数据库/文件设计
A. Ⅰ、Ⅱ、Ⅲ、Ⅳ
B. Ⅲ、Ⅳ、Ⅴ、Ⅵ
C. Ⅰ、Ⅲ、Ⅳ、Ⅵ
D. Ⅱ、Ⅲ、Ⅳ、Ⅵ
[单选题]脱苯蒸馏富油管式炉烟囱吸力一般为( )pa。
A.80
B.90
C.100
D.110
[判断题](1.0分)根据《国务院关于进一步加强企业安全生产工作的通知》要求,企业须加大安全生产专项投入。
A.正确
B.错误
[单项选择]间接抗人球蛋白试验检测何类抗体()
A. 结合在红细胞表面的IgG
B. 琼脂糖凝胶
C. 结合在红细胞表面的IgM
D. 游离的IgM
E. 以上都不是
[判断题]文明礼貌是社会主义职业道德的一条重要规范。
A.正确
B.错误
[判断题]含碳的化合物一定是有机物。
A.正确
B.错误
[多项选择]国家标准中规定,集装箱的重量系列有()四种。
A. 30吨集装箱
B. 20吨集装箱
C. 10吨集装箱
D. 5吨集装箱
E. 2.5吨集装箱
[判断题]100kV·A及以上的电力排灌站实行功率因数标准值为0.8。
A.正确
B.错误
[判断题]一般来说,销售增加会引起应收账款周转率的明显变化。()
[单项选择]
男性,47岁,头痛发病,病程4个月,入院前出现左侧肢体无力和呕吐,入院检查,意识清,眼底视乳头水肿,左上下肢肌力Ⅳ级,腱反射活跃,病理征(+)。
目前能确定的诊断是( )
A. 脑梗死
B. 脑出血
C. 蛛网膜下隙出血
D. 脑水肿
E. 颅内压增高
[判断题]东风11型机车在每个轴箱上都设置了结构简单且抗震性能很高的轴温传感器。( )
A.正确
B.错误
[单选题]各站(中队)按照规定,由站(中队)值班员整队带往大队的集合地点,随即向基准分队取齐,然后,跑步到距大队指挥员( )步处报告人数,大队指挥员整队后,向大队主要领导报告人数
A.A、4-6
B.B、5-7
C.C、6-8
D.D、8-10
[单项选择]下列哪种先天性心脏病的肺血减少______
A. 房间隔缺损
B. 室间隔缺损
C. 动脉导管未闭
D. 艾森门格综合征
E. 法洛四联症
[单选题]可以衡量肝细胞分化程度的指标是
A.精氨酸酶
B.CPS-Ⅰ
C.CPS-Ⅱ
D.精氨酸代琥珀酸裂解酶
E.鸟氨酸氨基甲酰转移酶
[填空题]Young school-age kids need reading to their parents, but it is not necessary for them to read together with their parents.
[填空题]取得保密资格的单位,发生( )或者存在重大泄密隐患经警告逾期不改的,撤销其保密资格。
[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—many people who live at high altitudes are relatively poor compared witf 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 borr 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 birthweight 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.
What does the new study discover?
A.Babies born to wealthy families are heavier.
B.Women living at high altitude tend to give birth to underweight babies.
C.Newborns in cities are lighter than average.
D.Low-altitude babies have a high risk of heart disease in later life.
[单项选择]房务部应为客人提供()的日常服务。
A. 8h
B. 12h
C. 24h
D. 16h