热门试题:
[判断题]CRH1A动车组Mc车导流罩内采用的是半永久车钩。( )
A.正确
B.错误
[单选题]有以下程序
#define N 5
#define M N+1
#define f(x) (x*M)
main()
{int i1,i2;
i1=f(2);
i2=f(1+1);
printf(“%d %d\n”,i1,i2); }
程序的运行结果是()。
A.12 12
B.11 7
C.11 11
D.12 7
[单项选择] New ice core samples taken from the centre of the Greenland ice-sheet have given a detailed record of the last "interglacial (间冰期)" which rail from about 135,000 to 115,000 years ago. The cores, taken from a depth of 2,780 to 2,870 metres, show that during this period the climate oscillated(摆动) between three states instead of remaining in one, as in the whole of recorded human history. The middle state was like our own, but the others were either’’ much colder or warmer.
Worse, it seems that the climate flipped from one condition to another very rapidly. "It apparently took very little time, perhaps less than a decade or two, to shift between the states," Dr. J.C. W. White of the Institute of Arctic and Alpine Research at the University of Colorado wrote earlier this year in the scientific journal, Nature: "We humans have built a remarkable socio-economic system during perhaps the only time when it could be built, when the climate was stable enough to let us develop the agricul
A. We have been changing the climate with thoughtless actions for decades.
B. We have been handling machines with poor skills for decades.
C. We have been following a misleading chapter about the earth for decades.
D. We have been mistaken in the belief in developing the agricultural infrastructure.
[判断题][T]BG025 5 2 1
调防冲距,要将光杆缓慢上提到确定的防冲距高度,在防喷盒上打好方卡子。
A.正确
B.错误
[单项选择]以下关于热合机的使用,说法不正确的是()
A. 不得空机热合
B. 止血钳等金属用具可以深入高频头的两极
C. 热合时不宜在热合状态下直接拉断管道
D. 热合机有血污时,应先关机,然后用干棉球吸出,再用酒精棉球擦拭
E. 热合过程中应做好个人防护,佩戴手套、口罩等
[多选题]根据《爆破安全规程》(GB6722-2014)3.4规定,爆破作业人员指从事爆破作业的爆破工程( )和保管员。
A.技术人员
B.爆破员
C.安全员
D.质检员
[单选题]胡某,男,29岁,右胸部外伤后,胸壁局部软化浮动,出现反常呼吸运动,应考虑
A.血胸
B.气胸
C.皮下气肿
D.多根多处肋骨骨折
E.胸壁软组织挫伤
[单选题]关于空调系统抽真空,以下哪项正确?( )
A.可以抽出系统内任何部位的水分
B.真空度如能长时间保持,制冷剂在工作时则不会泄漏
C.以上都正确
D.以上都不正确
[多选题]《中国南方电网有限责任公司电力事故事件调查规程》规定,事故等级分为特别重大、()4个等级。
A.重大
B.中等
C.较大
D.一般
[判断题]测量管道流量时,不仅要有合格的节流元件,而且其前后直管段要符合要求。( )
A.正确
B.错误
[判断题]氧化剂按其危险性大小分为一级氧化剂和二级氧化剂。( )
A.正确
B.错误
[单项选择]同盟会成立后,革命形势迅速发展。同时,同盟会内部却出现了离心倾向,处于涣散状态。如一部分革命党人热衷于将暗杀作为一种斗争手段,他们主要是受到西方哪一种思想的影响()
A. 自由主义
B. 社会主义
C. 无政府主义
D. 人文主义
[单项选择]
The 1990s have been designated the Decade Against Drug Abuse by the United Nations. But, (1) less than three years to go before the end of the decade, governments and health organizations (2) that they have made (3) progress in reducing drug, alcohol and tobacco abuse. Today, consumption of all these substances is increasingly steadily worldwide. (4) every country now has problems with (5) drugs. And the world is producing and consuming more alcohol and tobacco than ever. Between 1970 and 1990 beer production (6) rose by over 80 per cent. And, (7) the number of smokers keeps on (8) ,by the second or third (9) of the next century there could be 10 million deaths each year (10) smoking related illnesses.
Drugs are also a huge burden (11) the world economy. In the United States, for example, it’s estimated that alcohol and illegal drug use costs the country tens of billions of dollars each yea
A. by
B. about
C. with
D. from
[单项选择]其治疗主要是
A. 肝素
B. 阿司匹林
C. 肾上腺糖皮质激素
D. 尿激酶
E. 抗血小板聚集药
[单项选择]100℃时,水的密度为()
A. 956.2
B. 958.4
C. 960.1
D. 以上均错误
[单选题]充装液体军用危险货物的容器内应当至少留有( )的空隙。
A.0.05
B.0.03
C.0.15
D.0.1
[单选题]嗜铬细胞瘤患者骤发高血压危象时。首选措施控制血压的是
A.舌下含服硝苯地平
B.静脉缓慢推注酚妥拉明
C.静滴硝普钠
D.静脉注射呋塞米
E.静滴硝酸甘油
[单选题]无缝道岔尖轨及其前后各25 m范围内的基本轨扣件扭矩应保持( )N•m。
A.40~60
B.50~70
C.60~80
D.120~150
E.120~160
F.120~180
[单项选择]年鉴条目写作适用()和说明文两种文体。
A. 议论文
B. 记叙文
C. 散文
D. 诗歌
[单项选择]为项目提供工程劳务的组织者或设备制造者的是( )。
A. 业主
B. 承包商
C. 监理人
D. 设计人
[单项选择]剪切力与板厚成正比,与剪切角度()。
A. 成正比
B. 成反比
C. 成平方正比
[单项选择]改变药品包装规格的补充申请的审批机构是
A. 境外申请人
B. 境内申请人
C. SDA
D. 省级药监局
E. 企业法人
[单选题]挖掘出的电缆或接头盒,如下面需要挖空时,应采取悬吊保护措施。电缆悬吊应每( )吊一道:接头盒悬吊应平放,不得使接头盒受到拉力;若电缆接头无保护盒,则应在该接头下垫上加宽 加长木板,方可悬吊。电缆悬吊时,不得用铁丝或钢丝等,以免损伤电缆护层或绝缘。
A.0.5~1m
B.l~1.5m
C.l.5~2m
D.2~2.5m
[多选题]请说出泵轴承过热的原因。
A.轴承损坏
B.轴承安装不正确或间隙不适当
C.轴承润滑不良(油质不好,油量不足)
D.泵轴弯曲或联轴器没找正
[单选题]双闭环调速系统中电流环的输入信号有两个,即( )。
A.主电路反馈的转速信号及 ASR 的输出信号
B.主电路反馈的电流信号及 ASR 的输出信号
C.主电路反馈的电压信号及 ASR 的输出信号
D.电流给定信号及 ASR 的输出信号
[多选题]下列变压器油检测方法属于化学方法的是( )。
A.闪点
B.酸值
C.界面张力
D.氧化安定性
[单选题]赵明的U盘中还剩余16.6MB的存储空间,若要存储大小为1024KB的照片,最多能存放( ).
A.14张
B.15张
C.16张
D.17张
[判断题]906.()抽油机井井口憋压时,要换上校验合格的压力表。
A.正确
B.错误
[单选题]80.某市的A区、B区两区城管局就行政执法管辖权发生争议时,下列哪一选项的说法是错误的?
A.提请市政府法制工作部门协调
B.两区城管局协商解决
C.由法制工作部门提出意见,报本市人民政府决定
D.由行政相对人自己选择
[单选题]设计单位应当根据有关安全生产的法律、法规、规章和国家标准、行业标准以及建设项目( ),按照《化工建设项目安全设计管理导则》(AQ/T3033),对建设项目安全设施进行设计。
A.可行性研究报告
B.安全评价报告
C.、安全条件审查意见书
[单项选择]相对直齿轮传动,斜齿轮传动的()增大,降低了每对轮齿所受的载荷。
A. 压力角
B. 中心矩
C. 重合度
D. 模数
[多项选择]常用的信用衍生产品包括( )。
A. 总收益互换
B. 信用违约互换
C. 信用价差期权
D. 信用联系票据
E. 信用贷款