热门试题:
[判断题]()烟草的根不仅具有吸收机能,而且具有合成作用,诸如烟碱.氨基酸.酰胺.激素等重要有机物,主要是在根部合成的。
A.正确
B.错误
[单选题]正线电话闭塞区段,( )即为一个电话闭塞区段。
A.车站两端站界标之间
B.相邻两车站邻近站界标之间
C.相邻两站运行方向头端站界标之间
D.相邻两站运行方向尾端站界标之间
[单项选择]物业管理公共区域清洁卫生费用不包括()。
A. 人工费
B. 广告宣传费
C. 水池清洁费
D. 化粪池清理费
[单选题]在中性点经消弧线圈接地系统中,当发生( )故障时,一般允许运行2h,需发出报警信号。
A.A.三相接地短路
B.两相接地短路
C.单相接地
[判断题]《安规》第2.3.6条,在非自动闭塞的电气化区段上更换钢轨时,可以将同一地点两股钢轨同时拆下。
A.正确
B.错误
[多选题]软土勘察除应符合常规要求外,尚应查明的内容有( )。
A.地表水体和地下水的分布、动态
B.地表硬壳层的分布与厚度、下伏硬土层或基岩的埋深和起伏
C.固结历史、应力水平和结构破坏对强度和变形的影响
D.微地貌形态和暗埋的塘、浜、沟、坑、穴的分布、埋深及其填土的情况
[单项选择]二级普通消防站移动式消防炮(手动炮、遥控炮、自摆炮等)配备标准是()。
A. 1个
B. 2个
C. 3个
D. 4个
[填空题]
Suppose you want to buy a house.
It is
important to look{{U}} (11) {{/U}}before you buy a house. First, decide
how many rooms you want. Then decide where you want to live--in the country, in
the suburb, or in the town or city. Do you want a{{U}} (12) {{/U}}house
or a two-family house Do you want a walk-up or apartment building with an
elevator Do you want to live in an apartment{{U}} (13) {{/U}}where
there are many families After you answer all these questions, go out and look.
Don’t be{{U}} (14) {{/U}}if you don’t find something immediately. Maybe
the house or apartment is not{{U}} (15) {{/U}}the price, or maybe the
rooms are too small. You can decide for yourself.
[单选题]She was given a shot of morphine to relieve the pain.
A.lessen
B.stop
C.release
D.inflict
[多项选择]轧钢生产中,钢材的缺陷和质量问题按其检验方法分有()。
A. 由化学分析中发现的化学成份不合格;
B. 由物理性能、力学性能、工艺性能及金相组织等检验发现的性能和组织不合格;
C. 由尺寸测量和表面检验发现的尺寸、外形不合格和表面缺陷。
D. 以上都不是。
[判断题]对关键装置、要害(重点)部位应实行领导干部联系(承包)制度。
[填空题]我国现行化学试剂的等级通常用GR.AR和CP表示,它们分别代表()、()和()纯度的试剂.
[单项选择]As if they didn’t have their hands full with Iraq and terrorism, U. S. intelligence agencies are being drawn into the debate over whether the United States is imminently threatened by a deadly outbreak of bird influenza and whether the Bush administration has adequately prepared for such an epidemic. Over the last two weeks, the administration has held bird flu briefings classified "Top Secret/Sensitive Compartmented Information" for members of both houses of Congress. A counterterrorism official indicated that the intelligence community is also studying whether it would be possible for terrorists to somehow exploit the avian flu virus and use it against the United States, though there is no evidence that terrorists have in any way tried to do so. The World Health Organization is warning that if a pandemic (a disease for which there is no certain treatment and to which humans have no natural immunity.) outbreak occurs, "at least 30 million people worldwide could require hospitalization
A. Americans needn’t worry too much about it because it is less dangerous
B. the government will disclose the briefings’ content to the public
C. Americans will be possibly required not to move about at will
D. the government will take such measures as the Spanish government did
[单选题] 对有触电危险、检修(施工)复杂,容易发生事故的工作,应增设( )。 (1.0分)
A. 小组负责人
B. 工作负责人
C. 专责监护人
D. 工作许可人
[配伍题]因红细胞血型不合使输入的红细胞在受体内发生异常破坏( )|因白细胞血型不合导致输血过程中出现寒战和不同程度的发热( )|输血后约1周,病人突然发生全身性紫癜,血小板数明显下降( )|输血后出现暴发型类似感染性休克的临床表现( )|对血浆蛋白发生免疫性抗原抗体反应而出现荨麻疹,严重者出现休克和呼吸困难( )
A. 非溶血性发热反应
B. 输血后过敏反应
C. 输入细菌污染血液
D. 输血后紫癜
E. 溶血反应
[判断题] 易燃和可燃液体的燃烧是液体本身在燃烧。( )(中)
A.正确
B.错误
[单项选择]有关按径向做套筒挤压连接的方法应符合《带肋钢筋套筒挤压连接技术规格》(JGJ108-96)的要求。一般性能等级分A级和B级二级;不同直径的带肋钢筋亦可采用挤压连接法,当套筒两端外径和壁厚相等时,被连接钢筋的直径的直径相差不应大于()。
A. 4mm
B. 5mm
C. 6mm
D. 8mm
[单项选择]哪一时期是肝脏造血的主要时期()
A. 胚胎第3~6周
B. 胚胎第6~8周
C. 胚胎第4~5月
D. 胚胎第6~8月
E. 胚胎第8~9月
[单项选择]It is impossible to find out exactly how many volunteers are at work today in the United States. Thirty-seven million or so are known to belong to (67) like the Pink Ladies, Travelers’ Aid, or Big Brothers’, but those who work (68) or in small informal groups cannot be (69) . The total number of men and women who give their time to help others appears to be between fifty and sixty-eight million.
They do almost anything: they sew, clean, (70) , paint, cook, repair things, (71) books for the blind, (72) sick children in hospitals, or (73) senior citizens who do not want to go out alone. They give their blood; they work in libraries and schools; they (74) documents for new citizens with a language problem or (75) money to support local symphony orchestras; they answer the telephone calls of the (76) who are thinking of killing themselves, and who need a friendly (77) .
Volunteers
A. acquaint
B. amuse
C. amaze
D. sustain
[判断题]用铝热焊法实施原位焊复要焊成与切除长度等长的焊缝。
A.正确
B.错误
[多选题]若工作间断后所有()保持不变,工作票可由工作负责人执存。
A.安全措施
B.工作时间
C.接线方式
D.工作班成员
[判断题]施工现场内进行电焊作业时必须使用防护眼镜。( )
A.正确
B.错误
[判断题]鸡腿肉必须漂净血水后才能作为茸泥的加工原料。
A.正确
B.错误
[单选题]下列对网络认证协议 Kerberos 描述正确的是:
A.该协议使用非对称密钥加密机制
B.密钥分发中心由认证服务器、票据授权服务器和客户机三个部分组成
C.该协议完成身份鉴别后将获取用户票据许可票据
D.使用该协议不需要时钟基本同步的环境
[单选题]504.车床上中心架或刀架的主要作用是()。
A.增加工件的强度
B.增加工件的刚性
C.增加刀具的强度
D.增加刀具的刚性
[判断题]在尽头线上调车时,距线路终端应有10m的安全距离;遇特殊情况需近于10m时,必须一度停车,运行速度不得超过3km/h
A.正确
B.错误
[判断题]、在191.9.年五四到194.9.年新中国成立以前这个时期,中国是资本主义社会。 ( )
A.正确
B.错误
[单选题]维护网络安全任何国家都不能___________,需要大力推动国际合作。
应该在联合国主导下尽快制定和出台信息安全国际行为准则等基础性法律文件,以
__________网络空间的国际秩序。
填入画横线部分最恰当的一项是:
A.明哲保身建立
B.袖手旁观完善
C.洁身自好制定
D.独善其身规范
[单项选择]税务机关在对某企业进行纳税检查过程中,发现该单位在经营期间偷逃增值税50000元,税务机关对其作出追缴税款加收滞纳金并处以25000元罚款的处理决定,并送达处罚决定及处理决定书,该纳税人对处罚不服向上一级税务机关申请复议,其可在结清税款、滞纳金并收到税务机关填发的缴款凭证之日起( )日内提起复议申请。
A. 10
B. 15
C. 30
D. 60
[判断题]轨道车头灯、标志灯之一不能使用时,可继续运行。()
A.正确
B.错误
[判断题]促进稽核工作标准化、规范化、程序化、制度化建设。
[单选题](2014年真题)供热管道保温材料进场后应进行( )测定。
A.密度
B.含水率
C.导热系数
D.渣球含量
[多选题]井下、坑道作业时应采取哪些措施防止坍塌( )【多选题】
A. 应对除井口以外的区域进行加固
B. 应对侧壁进行支撑、加固
C. 不得停靠车辆或聚集大量人员
D. 严禁大型机械在周边行进、作业
[判断题]( )防腐蚀衬里管道全部用法兰联接,弯头、三通、四通等管件均制成法兰式。
A.正确
B.错误
[单选题]女性,31岁,甲状腺肿瘤,术中偶然发现一侧腺叶有0.5cm病灶,经冰冻切片证实为乳头状腺癌,未浸润包膜,最适宜的治疗方法为()
A.双侧甲状腺大部切除
B.病侧腺叶切除加峡部切除加对侧腺叶大部切除
C.病侧腺叶切除加同侧淋巴结清除术
D.病侧腺叶切除加峡部切除
E.病侧腺叶大部切除
[判断题]液体的沸点与压力有关,压力越高,沸点越低。( )
A.正确
B.错误
[判断题]在物流战略实施模式中,渐进式发展模式是对企业物流不合理状况进行局部的改良。