主页
学科
搜索
账户
常见问题
当前学科:高铁接触网检修工
题目:
单选
《高速铁路接触网运行维修规则》中规定:承力索、接触线间距≤()mm时采用“C"型连接的方式。
A . 800
B . 900
C . 1000
D . 1100
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
患儿,男,9个月。因“腹泻2天”于2001年12月入院。2天前患儿突然发热、轻微咳嗽、流涕,当地医院曾予以青霉素和“感冒冲剂”口服,3小时后突然呕吐,共三次,为胃内容物。随之腹泻,大便8-10次/天,呈蛋花汤样或水样,无腥臭,不带黏液脓血。今病情加重,大便已解12次,均为水样便。入院前6小时患儿烦躁不安,不思饮食,无尿。无抽搐。入院时体格检查:T38.6℃,脉搏134次/分,呼吸40次分,Bp85/40mmHg,体重7公斤。精神萎靡,面色苍灰,全身皮肤花斑,四肢厥冷,前囟深凹,眼眶凹陷口唇干燥,咽稍红,颈软,呼吸略促,二肺呼吸音清,未闻及干湿性罗音。心率134次,心率齐,心音略低。腹部稍膨隆,肠鸣音亢进,肝肋下1.5cm、剑突下2.0cm,脾未及。神经系统无阳性体征。化验:血常规:Hb116g/L,WBC6.0×109/L,N43%,L56%。大便常规:黄色糊状,WBC0-3/HP。血气分析和电解质测定:pH7.30,PaO288mmHg,paCO233mmHg,HCO3-18mml/L,BE-9.8mmol/L,Na+128mmol/L,K+3.6mml/L,Cl-97mmol/L。问题:1)该患儿的诊断是什么?(2分)2)最可能的病原是什么?(1分)3)请简要列出治疗方案。(4分)
在细水雾灭火系统的喷头安装要求中,喷头与管道的连接宜采用端面密封或(),不应采用聚四氟乙烯、麻丝、黏结剂等作密封材料。
下列关于原发性肝内胆管癌的CT表现正确的是()
同常规加工相比,数控加工具有哪些特点?
资本的流动性越强,中央银行的非冲销政策就会越有效,对经济的促进作用也就会越显著。()
患者发热,咳黄脓痰,胸部X线显示左上肺大片浸润伴空洞,病原学检查至少应包括()。
推算的中、停时能否完成是审批班计划的主要内容之一,累计不能完成时,要向()汇报。《调规》82条2项
Marriage Advertisements in India Every Sunday morning millions of Indians settle down with a cup of tea and special weekend issues of their newspapers, just as Americans do. But here, with the marriage season approaching, many of them quickly to a Sunday feature that is particularly Indian-the-columns of marriage advertisements in which young people look for husbands and wives. This is relatively modern change in the age-old custom of the arranged marriage. The thousands of advertisements published each week increasingly reflect social changes that coming to this traditional society. For example, although women are still described in terms of appearance, or skill in "the wifely arts", information about her earning power is entering more and more of the advertisements. This reflects the arrival in India of the working wife. Divorce, which used to be almost unheard of in India, is sometimes now mentioned in the advertisements as in the case of a woman whose advertisement in New Delhi newspaper explained that had been "the innocent party" when her marriage broke up. Because the custom of the dowry (marriage payment) is now illegal, some advertisements say "no dowry" or "simple marriage", which means the same thing. However, the fathers of many bridegrooms still require it. In a land where light skin is often regarded as socially preferable, many also require that a woman have a "wheat-color" complexion or that a man be "tall, fair and handsome". Advertisements are placed and eagerly read by a wide range of people in the upper classes, mostly in cities. Many of them receive dozens of answers."There's nothing embarrassing about it," explained a Calcutta businessman advertising a son-in-law. "It's just another way of broadening the contacts and increasing the possibility of doing the contacts and increasing the possibilities of doing the best one for one's daughter." Because of high unemployment and a generally poor standard of living here, one of the best attractions a marriage advertisement can offer is a permit to live abroad, especially in Canada or the United States. A person who has one can get what he wants. One recent Sunday in Madras, for example, a Punjabi engineer living in San Francisco advertised for a "beautiful slim bride with lovely features knowing music and dance". And a man whose advertisement said that he held an American immigration permit was able to say, only girls from rich, well-connected families need apply. The word "dowry" in the third paragraph means marriage payment.()
二硝基苯酚能抑制下列哪种细胞功能?()
婴幼儿期预防佝偻病不恰当的治疗是()