热门试题:
[单选题]中国人民的局部抗日战争开始于
A.华北事变后
B.九一八事变后
C.一二八事变后
D.卢沟桥事变后
[单项选择]There was a Jewish trader, who had come by one of Strickland's pictures in a(n) {{U}}peculiar{{/U}} way.
A. single
B. singular
C. elaborate
D. essential
[填空题]天车的工作级别是由天车的（）和天车的（）确定的。
[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.
It can be learned from the last paragraph that＿________.
A.high-altitude babies tend to have high blood pressure in their later life
B.underweight babies have a shorter life span
C.babies born to poor families lack certain hormones before birth
D.newborns in wealthy families have larger heads compared with their bodies
[单选题]急性胰腺炎患者可以使用消旋山莨菪碱治疗腹痛
A.正确
B.错误
[单选题]脑出血病人死亡的主要原因是( )
A.坠积性肺炎
B.压疮感染
C.脑疝
D.上消化道出血
E.中枢性高热
[单选题]决策盈亏平衡点法是指在一定的销售量下，企业的销售收入( )。
A.A:小于总成本。
B.B:大于总成本。
C.C:等于总成本。
D.D:参考成本价。
E.略
F.略
[判断题]仓库必须建立准确可靠的防潮系统。
A.正确
B.错误
[配伍题]从饮食、运动上严格管理，最适合于（）|低盐饮食、避免情绪大波动，最适合于（）|多晒太阳、防跌倒，最适合于（）
A. 糖尿病
B. 高血压
C. 骨质疏松
D. 焦虑障碍
E. 消化性溃疡
[判断题]串级仪表投用时，一般先投主参数控制表，再投副参数控制表。
A.正确
B.错误
[单项选择]在班级管理模式中，放任型管理的特点是（）
A. 工作效率高
B. 人际关系差
C. 学生归属感强
D. 让学生在课堂上做他们感兴趣的事情
[单项选择]在每一次三羧酸循环过程中，错误的是
A. 消耗1分子乙酰CoA
B. 生成2分子COz
C. 共有4次脱氢反应
D. 形成2(NADH+H+)和2FADH2
E. 一次底物水平磷酸化
[单项选择]Many foreigners who have not visited Britain call all the inhabitants English, for they are used to thinking of the British Isles as England. (1)_____, the British Isles contain a variety of peoples, and only the people of England call themselves English. The others (2)_____ to themselves as Welsh, Scottish, or Irish, (3)_____ the ease may be; they are often slightly annoyed (4)_____ being classified as "English". Even in England there are many (5)_____ in regional character and speech. The chief (6)_____ is between southern England and northern England. South of a (7)_____ going from Bristol to London, people speak the type of English usually learnt by foreign students, (8)_____ there are local variations. Further north regional speech is usually "(9)_____" than that of southern Britain. Northerners are (10)_____ to claim that they work harder than Southerners, and are more (11)_____. They are open-hearted and hospitable; foreigners often find that they make friends with them (12)_____. Northerners generally have hearty (13)_____: the visitor to Lancashire or Yorkshire, for instance, may look forward to receiving generous (14)_____ at meal times. In accent and character the people of the Midlands (15)_____ a gradual change from the southern to the northern type of Englishman. In Scotland the sound (16)_____ by the letter "R" is generally a strong sound, and "R" is often pronounced in words in which it would be (17)_____ in southern English. The Scots are said to be a serious, cautious, thrifty people, (18)_____ inventive and somewhat mystical. All the Celtic peoples of Britain (the Welsh, the Irish, the Scots) are frequently (19)_____ as being more "fiery(暴躁的，易怒的)" than the English. They are (20)_____ a race that is quite distinct from the English.
A. perfect
B. notorious
C. superior
D. thorough
[单项选择]与供应商签订长期供货合同是BOT项目公司规避（）风险的有效手段。
A. 不可抗力
B. 原材料来源
C. 通货膨胀
D. 招标不成功
[单选题]ILS的下滑指示如显示90Hz占优，则说明着陆航空器（）。
A.在下滑面内
B.在下滑面以上
C.在下滑面以下
D.不能确定
[多项选择]母线电流相位比较式母线差动保护的主要缺点有（）
A. 母线运行灵活性较低
B. 正常运行时母联断路器必须投入运行
C. 当母线故障，母差保护动作时，如果母联断路器拒动，将造成由非故障母线的连接元件通过母联断路器供给短路电流，使故障不能切除
D. 两组母线发生故障时只能切除先发生故障的母线，后发生故障的母线因为无法进行相位比较而不能切除
[单项选择]《郑伯克段于鄢》中，“亟请于武公”句中的“亟”的意思是（）
A. 迅速
B. 急忙
C. 屡次
D. 竭力
[填空题]中继阀是电空制动控制器及空气位空气制动阀的执行元件,它依据( )的压力变化来控制列车制动管的压力变化,从而完成列车的制动、保压和缓解。
[单项选择]轨道铺设中轨道质量应达到（）
A. 优良品
B. 劣质品
C. 差
[单项选择]患儿5个月，因发热、咳嗽两天，喘1天入院。体检：T39.5℃，P150次/min，R50次/min，烦躁不安，面色灰白，两肺有细湿啰音。诊断为支气管肺炎。
该患儿首选的护理诊断/问题是
A. 体液不足
B. 营养缺乏
C. 心输出量减少
D. 体温过高
E. 睡眠形态紊乱
[判断题]对于不能在车速表检验台上检验的车辆，应路试检验车速表指示误差。
[单选题] 对于公务员的任用应坚持的原则， 下列哪一说法是正确的？
A.勤能并重
B.管理与监督并重
C.唯才是用
D.任人唯贤， 德才兼备
[填空题]可将数据转换成为计算机内部形式并输送到计算机中去的设备统称为（）。
[单选题]客运乘务人员配备统一乘务箱（包），（）。
A.集中存备品柜
B.集中定位摆放
C.集中定点摆放
D.集中定置摆放
[多选题]对党员的纪律处分种类（ ）。
A.警告
B.严重警告
C.撤销党内职务
D.留党察看
[判断题]根据《配电安规》，专责监护人应具备工作负责人的资质。
A.正确
B.错误
[多项选择]辅助生产费用的直接分配法（）。
A. 适用于辅助生产车间之间相互不提供劳务
B. 适用与辅助生产车间相互提供产品或劳务不多
C. 计算工作简便
D. 计算结果比较准确
[单项选择]The Caspian Sea, a salt lake, is （ ） any other lake in the world.
A. largest
B. the largest
C. larger than
D. the larger than
[多选题]财政性资金的支付实行（）和（）两种方式。
A.财政直接支付
B.财政授权支付
C.财政支付
D.授权支付
[单选题]以下关于原始凭证基本要求说法错误的是（ ）。
A.凭证的大写和小写金额必须相符。
B.从外单位取得的原始凭证，必须有出具单位的有效印章；不得从个人取得的原始凭证。
C.上级有关部门批准的经济业务，应在凭证上注明批准部门名称、日期以及文件字号，或将批准文件作凭证附件。
D.原始凭证记载的各项内容均不得涂改、挖补。
[单选题]我国《合同法》规定，当事人在合同中既约定了违约金又约定了定金的，一方违约时，另一方()。
A.只能请求适用定金条款
B.只能请求适用违约金条款
C.可以同时适用定金条款和违约金条款
D.可以选择请求适用定金条款或违约金条款
[填空题]晶体管直流稳压电源一般由整流、滤波和（）稳压电路等三部分组成。
[判断题]采煤机周检时，应检查工作油液的质量是否符合要求，进行现场过滤或更换。
[单选题]胆囊三角(Calot三角)的构成是
A.胆囊管、肝总管和肝门构成的三角区
B.胆总管、肝总管和胰管构成的三角区
C.胆囊管、肝总管和肝下缘构成的三角区
D.胆总管、肝门和十二指肠乳头处构成的三角区
E.胆囊、肝脏和胰腺构成的三角区
[单选题] 关于保证金和保证人，以下说法正确的是（）
A. 符合取保候审条件的犯罪嫌疑人既不交纳保证金，又无保证人担保的，应当监视居住
B. 符合取保候审条件的犯罪嫌疑人拒不交纳保证金，可以监视居住
C. 被判处缓刑的罪犯可以做取保候审的保证人
D. 保证人发现被取保候审人违反取保候审有关规定的，应当及时向决定机关报告
[单选题]扫描仪分辨率的单位是
A.CCD
B.DPI
C.VGA
D.Mbps
[单选题]审计报告文本基本要素不包括（ ）。
A.报告封面
B.审计报告正文
C.审计工作底稿
D.报告封底
