热门试题:
[多项选择]下列设备中,具有输入输出设备特点的有( )。
A. 键盘
B. 软盘
C. 硬盘
D. 显示器
[单项选择]
Ancient Egypt Brought down by Famine
Even ancient Egypt’s mighty pyramid (金字塔) builders were powerless in the face of the famine (饥荒)that helped bring down their civilization around 2180 B.C.. Now evidence collected from mud deposited by the River Nile suggests that a shift in climate thousands of kilometers to the south was ultimately to blame and the same or worse could happen today.
The ancient Egyptians depended on the Nile’s annual floods to irrigate their crops. But any change in climate that pushed the African monsoons (季风) southwards out of Ethiopia would have reduced these floods.
Declining rains in the Ethiopian highlands would have meant fewer plants to stabilize the soil. When rain did fall it would have washed large amounts of soil into the Blue Nile and into Egypt, along with sediment (沉积) from the White Nile.
Blue Nile mud has a different isotope (同位素) signature from that of the white Nile, so by analyzing is
A. Because they once worked miracles.
B. Because they were well-built.
C. Because they were actually very weak.
D. Because even they were unable to rescue their civilization.
[单项选择]国家秘密是关系国家的安全和利益,依照()确定,在一定时间内只限一定范围的人员知悉的事项
A. 法律规定
B. 法定程序
C. 有关法规规章
[多项选择]矩阵式组织结构富有弹性,有自我调节的功能,能更好地适合于动态管理和优化组合,主要适合于()。
A. 多个项目的管理
B. 大型项目的管理
C. 单个小型项目的管理
D. 简单项目的管理
[单项选择]计算机打印机设备种类繁多,按印字原理,可分为______。
A. 击打式和非击打式
B. 串行打印机和并行打印机
C. 彩色打印机和黑白打印机
D. 激光打印机和喷墨打印机
[单项选择]绍兴和议是宋朝和()签订的。
A. 金
B. 辽
C. 元
D. 契丹
[单选题]停电拉闸操作应按照( )的顺序依次进行,送电合闸操作应按与上述相反的顺序进行。禁止带负荷拉合隔离开关(刀闸)。
A.断路器(开关)—负荷侧隔离开关(刀闸)—电源侧隔离开关(刀闸);
B.负荷侧隔离开关(刀闸)—断路器(开关)—电源侧隔离开关(刀闸);
C.断路器(开关)—电源侧隔离开关(刀闸)—负荷侧隔离开关(刀闸);
D. 负荷侧隔离开关(刀闸)——电源侧隔离开关(刀闸)——断路器(开关)
[多项选择]最早的成文法,大多是对习惯的记载。以下( )多是对习惯的记录和汇编。
A. 亚述法典
B. 汉默拉比法典
C. 十二铜表法
D. 法经
E. 唐律
[填空题]Hudson said he could not eat any living thing____________(除非是在非常饥饿的情况下).
[单项选择]CSU双感应球形聚焦仪DIL-D垂直分辩率为()。
A. 150cm
B. 200cm
C. 100cm
[单项选择]甲乙两公司签订注册商标使用许可合同,规定甲公司许可乙公司使用其注册商标的,该合同须履行什么法定程序()
A. 经商标局核准
B. 经商标评审委员会核准
C. 经甲厂所在地县级以上工商行政管理机关核准
D. 报商标局备案
[单选题]本质安全防爆技术的特点之一可在带电情况下进行维护、标定和更换仪表的部分零件等。
A.对
B.错
[多选题]《国网安徽省电力有限公司安全生产反违章工作管理规范》中规定开展违章统计分析。以( )为周期,统计违章现象,分析违章规律,研究制定防范措施,定期在安委会会议、安全生产分析会、安全监督(安全网)例会上通报有关情况。
A.周
B.月
C.季
D.年
[判断题]辩证思维法又可以称为矛盾思维法。( ) 1(易)
A.正确
B.错误
[多项选择]恒生流通精选指数系列包括( )。
A. 恒生50
B. 恒生中国内地25
C. 恒生香港25
D. 恒生100
[单项选择]
Crime has its own cycles(周期) ,a magazine reported some years ago. Police records that were studied for five years from over 2400 cities and towns show a surprising link between changes in the season and crime patterns. The pattern of crime has varied very little over a long period of years. Murder reaches its high during July and August as do other violent attacks. Murder, moreover is more than seasonal; it is a weekend crime. It is also a nighttime critne:62 percent of murders are committed between 6 p. m. and 6 a. m.
Unlike the summer high in crimes of bodily harm, robbing has a different cycle. You are most likely to be robbed between 6 p. m. and 2 a. m. on a Saturday night in December, January, or February. The month with least crimes of all May-except for one strange fact. More dog bites are reported in this month than in any other month of the year. Apparently our seasonal cycles of knowledge are completely different from our tendencies for crimes. Professor
A. One is most likely to be murdered on Thursday.
B. Police officials believe in the results of the studies deeply.
C. It is very possible that robbery happens at 4 a. m. every day.
D. The studies show that high humidity is one of the reasons for high rate of crimes.
[单选题]如果验电器指示有电,则( )在该设备上工作
A.可以
B.应该
C.马上
D.禁止
[判断题]列车须按规定编定车次,上行列车编为双数,下行列车编为单数。
A.正确
B.错误
[单项选择]
男,45岁。大便时突然出现剧烈头痛、恶心呕吐,为胃内容物。1年前曾有一过性,右侧上睑下垂。急诊来院。
如需做出病因诊断,应进行下述哪项辅助检查()
A. 颅脑CT增强扫描
B. 颅脑MRI检查
C. 脑电图检查
D. SPECT检查
E. 脑血管造影
[单选题]起吊重物稍离地面(或支持物),应再次检查(),确认无异常情况后方可继续起吊。
A.各受力部位
B.重心位置
C.是否偏离方向
D.是否安全可靠
[单选题]鸽属于______。 ( )
A.哺乳纲
B.鸽形目
C.爬行纲
D.食肉目
[单项选择]1924年至1926年间,中国工人坚持16个月之久的罢工斗争是()
A. 香港海员罢工
B. 安源路矿工人罢工
C. 京汉铁路工人罢工
D. 省港罢工
[判断题]禁止在具有火灾.爆炸危险的场所吸烟.使用明火。因施工等特殊情况需要使用明火作业的,应当按照规定事先办理审批手续,采取相应的消防安全措施。( )
A.正确
B.错误
[单项选择]空气中的音速与温度(),温度高则音速()。
A. 有关,小
B. 有关,大
C. 无关,不变
D. 有关,不确定
[判断题]手提式灭火器的铭牌,应有该灭火器的水压试验压力值、出厂年份的钢印。
A.正确
B.错误
[单选题]施工现场出入口应满足消防车通行要求,且宜在不同方向布置.,其总数不宜少于() 个。
A.2
B.3
C.4
D.5
[单项选择]在政府职能的实现手段中,()具有间接性、有偿性、平等性和关联性的特点。
A. 行政手段
B. 经济手段
C. 法律手段
D. 市场手段
[单选题]A-B-009 3 2 3
用发电机出口断路器作同期点实现( )并列的电路。
A. 变压器与母线
B. 发电机与母线
C. 发电机同与变压器
D. 发电机与断路器
[单选题]队友发生触电、溺水、窒息等情况时,第一时间应该做什么措施? ( )
A.送医治疗
B.报告领导
C.止血包扎
D.心肺复苏
[单选题]细辛内服入汤剂的剂量是
A.6~12g
B.12~30g
C.1~3g
D.30~60g
E.0.5~1g
[单选题]若不能使梯子稳固时,可派人扶着,以防梯子下端滑动,但应做好防止落物打伤下面人员的安全措施
A.A.安全措施
B.B.技术措施
C.C.管理措施
D.D.监督措施
E.略
F.略
G.略
[单项选择]为了克服软件危机,人们提出了用 ______ 的原理来设计软件,这就是软件工程诞生的基础。
A. 数学
B. 软件学
C. 运筹学
D. 工程学
[填空题]直径大于28mm的II级钢筋,在冷弯试验时弯心直径应为(),弯曲角度为180°。
[单选题]1985年国家高程基准水准原点的高程是( )
A.72.289m
B.72.260m
C.72.345m
D.0m