热门试题:
[单选题]调节衰退的机理之一是因( ),调节时不能完成预期的收缩量。
A.睫状体和巩膜组织弹性下降
B.睫状肌纤维的张力下降
C.睫状韧带逐渐纤维化
D.晶状体基质成分密度增高
[单选题]下面可以列入当年评优范围。( )
A.考核期内病事假等缺勤天数累计 3 个月及以上的;
B.考核期内受到公司处分及造成重大损失的;
C.截止当年 12 月 20 日工作满三个月的新入职员工;
D.考核期内出现旷工考勤的。
[单项选择]心脏瓣膜有什么生理作用：
A. 促使血液从大血管回流到心脏
B. 使血液从外周血管回流心脏
C. 使血液不从外周血管返回心脏
D. 是血液在心腔间、心腔与大动脉间流通的阀门
E. 使血液能从心脏流到体静脉
[判断题]对于尽早发现溢流显示的井,则优选采用软关井。( )
A.正确
B.错误
[单选题]《20kV及以下配电网工程预算定额 第二册 电气设备安装工程》中规定，以下材料中损耗率最大的是（）。
A.A、金具
B.B、金属板材
C.绝缘导线
D.D、型钢
[单项选择]
When Rupert Murdoch sees beams of light in the American advertising market, it is not necessarily time to reach for the sunglasses. Last October, when the impact of September 11th was only beginning to tell, the boss of NASCAR, a media group, had already identified " strong rays of sunshine". With ad sales still languishing, Mr. Murdoch declared last month that " there are some hints of a modest upswing in tile US advertising market". His early optimism turned out to be misplaced. Now, however, other industry observers are beginning to agree with him.
Advertising usually exaggerates the economic cycle, falling sharply and early in a downturn, and rebounding strongly once the economy has begun to recover. This is because most managers prefer to trim their ad budgets rather than their payrolls, and restore such spending only once they feel sure that things are looking up. Last year, America’s ad market shrank by 9. 8% , according to CMIR, a
A. exaggerating the situation
B. being too cautious
C. underestimating the development
D. probably describing the reality
[填空题]状态估计可分为（）；（）；（）；（）四个步骤。
[多项选择]光是色彩之源，没有光就没有色彩，光的三原色为（）
A. 红
B. 黄
C. 蓝
D. 绿
[单选题]按GB /T1576-2018《工业锅炉水质》使用热水锅炉标准规定，补给水pH值为( )。
A.7.0～9.0
B.7.0～11.0
C.8.0～9.5
[单选题]在停电检修作业中，开断或（ ）绝缘导线前，应做好防感应电的安全措施。
A.A.接入
B.B.接上
C.C.接进
D.D.断开
[单选题]编组始发列车，根据日（班）计划规定的车次，按图定的时分正点或早点不超过（）出发时，按出发正点统计
A.5min
B.10min
C.15min
D.20min
[单项选择]下列哪一项是流行性腮腺炎病毒的唯一宿主：（）
A. 牛
B. 猪
C. 羊
D. 鼠
E. 人
[单项选择]在RBS200机架中，哪一条BUS线不是通过外部连接的。（）
A. LIB BUS
B. O&M BUS
C. C-BUS
D. TX BUS
[单项选择]编译程序对高级语言源程序进行翻译时，需要在该程序的地址空间中为变量指定地址，这种地址称为 （ ） 。
A. 逻辑地址
B. 物理地址
C. 接口地址
D. 线性地址
[多项选择]除查验原始质量凭证外，质量检验的形式还包括______。
A. 查验合同书
B. 实物检验
C. 编制检验规程
D. 派员进厂(驻厂)验收
[判断题]有功功率和无功功率的代数和称之为视在功率。
A.正确
B.错误
[填空题] America’s most popular newspaper website today announced that the era of free online journalism is drawing to a close. The New York Times has become the biggest publisher yet to 62 plans for a paywall around its digital offering, 63 the accepted practice that internet users will not pay for news.
Struggling 64 an evaporation of advertising and a downward drift in street corner sales, The New York Times 65 to introduce a “metered” model at the beginning of 2011. Readers will be required to pay when they have 66 a set number of its online articles per month.
The decision puts the 159-year-old newspaper 67 the charging side of an increasingly wide chasm (鸿沟) in the media industry. But others, including the Guardian, have said they will not 68 internet readers, and certain papers, 69 London’s Evening Standard, have gone further in abandoning readership revenue by making their print editions 70 .
The New York Times’s publisher, Arthur Sulzberger, 71 that the move is a gamble: “Thi
A. A．set in
B．carry over
C．set out
D．carry away
[判断题]《儒林外史》是一部章回体长篇讽刺小说，作者是吴敬梓。
[单项选择]甲跑11米所用的时间乙只能跑9米，在400米的标准田径场上，甲、乙同时沿同一方向出发匀速跑离起点，当甲第三次追上乙时，乙离起点还有( )米。
A. 360
B. 240
C. 180
D. 200
E. 100
[单选题]依据《文物保护法》，工程设计方案应当根据（ ）经相应文物行政部门同意后，报城乡建设规划部门批准。
A.文物保护单位的级别
B.文物保护区范围
C.文物保护规模
D.文物保护类别
[判断题]网约车驾驶员违规收费的，由道路运输管理机构和价格主管部门按照职责责令改正，对每次违法行为处以5000元以上10000元以下罚款。
[单项选择]患者男，19岁，骑车摔倒时被自行车把顶到左下胸壁。当时感觉左上腹疼痛，半小时后被他人送到医院。查体：血压115/70mmHg，脉搏87次/min。左上腹局限性腹肌紧张，压痛阳性。Hb100g/L。腹腔穿刺发现不凝固血。为进一步明确出血部位，既方便经济又无创有效的检查是（）。
A. CT
B. 放射性核素
C. B超
D. 腹部X线摄片
E. 磁共振成像
[填空题]植物界分类单位（等级）是（）；（）；（）、目、科、属、种。
[单选题]运营分公司综合应急预案建立分工明确、责任到人、（）、常备不懈的地铁运营应急保障体系。
A.预防为主
B.先通后复
C.优势互补
[判断题]进入煤气区域进行检修作业,不应携带火种。
A.正确
B.错误
[单选题]道岔动作杆的销孔旷量应不大于（ ）。
A.是0.1mm
B.是0.3mm
C.是0.5mm
D.是1mm
[判断题]红色防汛预警是防汛预警中的最严重的级别。
A.正确
B.错误
[判断题]顶进桥涵的接口应采用可靠的防渗漏措施，并具有良好的耐久性。( )
A.正确
B.错误
[单项选择]因质量上乘而弛名海内外的“新会大红柑”是以新会（）的出产为代表。
A. 双水
B. 梅江
C. 古井
D. 沙堆
[单项选择]More and more, the operations of our businesses, governments, and financial institutions are controlled by information that exists only inside computer memories. (1) clever enough to modify this information for his own purposes can (2) big rewards. Even worse, a number of people who have clone this and been caught (3) it have managed to get away without punishment.
It’s easy for computer crimes to go (4) if no one checks up on what the computer is doing. But even if the crime is detected, the criminal may walk (5) not only unpunished but with a (6) recommendation from his (7) employers.
Of course, we have no statistics on crimes that go undetected. But it’s (8) to note how many of the crimes we do know about were detected (9) , not by systematic inspections or other security (10) . The computer criminals who have been caught may be the victims of (11) bad luck.
A. aside
B. out
C. on
D. away
[多选题]轨道结构是指路基面或结构面以上的线路部分，由（ ）等组成 。
A.A.钢轨
B.B.扣件
C.C.轨枕
D.D.道床
[单选题]阳和汤除有熟地、麻黄、炮姜炭、鹿角胶、生甘草外还有
A.桂枝、半夏
B.肉桂、白芥子
C.桂枝、紫苏子
D.肉桂、附子
E.桂皮、莱菔子
[多项选择]茜萆常用治（）
A. 出血证
B. 血瘀经闭
C. 跌打损伤
D. 风湿痹痛
E. 水火烫伤
[单项选择]已知三阶矩阵A与三维非零列向量α，若向量组α，Aα，A2α线性无关，而A3α=3Aα-2A2α，那么矩阵A属于特征值λ=-3的特征向量是
A. α．
B. Aα+2α．
C. A2α-Aα．
D. A2α+2Aα-3α．
[单选题]超限货物装车时间距确认电报发布时间不足( )的，发局应与沿途各局进行确认后再发布确认电报。
A.2日
B.2个工作日
C.3日
D.3个工作日
[单项选择]下列有关我国人民法院与外国法院之间的司法协助的说法中不正确的是哪一项( )
A. 依照我国缔结或参加的国际条约所规定的途径进行
B. 没有条约关系的依照外交途径进行
C. 外国驻中国使领馆可以向中国公民送达文书和调查取证
D. 外国法院委托我国法院协助的事项不得损害我国的主权安全和社会公共利益
[单选题]（ ）是对没有国家标准而又需要在全国某个行业范围内统一的
技术要求所制定的标准。
A.规范性文件
B.强制性标准
C.行业标准
D.规章
