热门试题:
[单项选择]In the past few decades, remarkable findings have been made in ethology, the study of animal social behavior. Earlier scientists had (21) that nonhuman social life was almost totally instinctive or fixed by genetics. Much more careful observation has shown that (22) variation occurs among the social ties of most species, showing that learning is a part of social life. That is, the (23) are not solely fixed by the genes (24) , the learn ing that occurs is often at an early age in a process that is called imprinting. Imprinting is clearly (25) instinctive, but it is not quite like the learning of humans; it is something in between the two. An illustration best (26) the nature of imprinting. Once, biologists thought that ducklings followed the mother duck because of instincts. Now we know that, shortly (27) they hatch, ducklings fix (28) any object about the size of a duck and will henceforth follow it. So ducklings may follow a bas
A. assumed
B. adopted
C. believed
D. surmised
[单项选择]结核杆菌繁殖一代所需时间为()
A. 18秒
B. 18分
C. 18小时
D. 18天
E. 18个月
[多选题]根据《线路安规》,带电线路导线的垂直距离(导线弛度、交又跨越距离),禁止使用( )等非绝缘工具进行测量。
A.皮尺
B.普通绳索
C.线尺
D.测量仪
[单选题]事故(故障)深度分析报告的主要内容包括()个方面
A.四
B.五
C.六
D.七
[单选题]《安全生产违法行为行政处罚办法(2015修正)》,不属于立功表现的是( )。
A.当事人有揭发他人安全生产违法行为,并经查证属实;
B.提供查处其他安全生产违法行为的重要线索,并经查不属实;
C.阻止他人实施安全生产违法行为;
D.协助司法机关抓捕其他违法犯罪嫌疑人的行为。
[单选题]甩线头夹送辊直径.( ) mm
A.260
B.255
C.250
D.245
[判断题]鳕鱼是我国南方海区重要的经济鱼类。
A.正确
B.错误
[单选题]诱发子宫脱垂的原因不包括
A.长期慢性咳嗽
B.腹水
C.久蹲
D.便秘
E.外伤
[多选题]作业前,应通过改善()、法等要素,降低施工作业风险。
A.机
B.人
C.料
D.环
E.略
F.略
[单项选择]在意识清晰时出现幻视见于( )
A. 抑郁症
B. 精神分裂症
C. 躁狂症
D. 强迫障碍
[单项选择]
Leave it to writer Buchwald to bring humor to hospice. Last February, the famed satirist was diagnosed with terminal kidney failure, given three weeks to live, and transferred to a hospice for a quiet goodbye. Then the unexpected happened. His kidneys almost miraculously started working again. The poisons in his blood that were supposed to carry him out in peaceful slumber(死亡) washed out of his system, leaving instead a funny bone stunned and amused by the absurdity of the situation. It’s not every day that someone flunks hospice. Seasoned author that he is, Buchwald turned the irony into a book.
Only 10 months ago, he was a sad, 80-year-old man with a newly amputated(切除) leg and kidneys on the fritz(发生故障). Despite his family’s pleas, he entered a hospice facility, at ease with his Choice to die naturally.
Most people don’t know much about hospice, the place. It doesn’t cure; it cares, relieving physical pain and mental anguish. Most often,
A. where patients who don’t want or can’t afford a treatment are cared for.
B. where treatment focuses on the patient’s well-being rather than the cure.
C. Where patients with terminal diseases live happily until they die.
D. where less than six percents of patients make the recovery.
[单项选择]现代工程咨询所需信息必须满足的基本要求不包括( )
A. 信息源必须客观、真实、可靠
B. 信息必须全面或比较全面地反映客观事物
C. 信息必须满足或基本满足咨询方法的需要
D. 信息必须满足或基本满足客户的需要
[单项选择]在进行胆囊检查之前要求病人禁食8~12小时的原因是()。
A. 排除肠道的气体
B. 使病人脱水
C. 使胆汁蓄积在胆囊腔内
D. 胃排空
[判断题]各个工区是外包工作实施的管理主体,
A.正确
B.错误
[单项选择]男性,23岁。活动后心悸、气短3年,口唇青紫1年就诊。心脏彩超示室间隔膜周部可见一直径约2cm的右向左分流束。下列诊治措施中,不恰当的是()
A. 及早手术矫正畸形
B. 适当强心、利尿
C. 口服卡托普利
D. 吸氧
E. 行右心导管检查
[单选题]由于客专线道岔采用60D40钢轨,使基本轨轨底与AT轨轨底的高差达(),采用施维格公司的弹性扣压技术,便于与琨轮的配合
A.24
B.28
C.32
D.36
[单选题]综合视频监控系统中,编码器编码器是将模拟视音频信号、各种告警信号、摄像机的PTZ控制信号及低速串行数据进行MPEG-4或H.264数字化编码,通过IP网络以“ ”速率传送动态图像的设备。
A.20帧/秒
B.28帧/秒
C.25帧/秒
D.35帧/秒
[判断题]过分相定位应答器组由两个无源应答器构成,用于列车进入分相区的精确定位和发送过分相信息。()
A.正确
B.错误
[判断题]在客户设备上工作,许可工作前工作负责人应与客户一起检查确认客户设备的当前运行状态、安全措施符合作业的技术要求,并向其交代相关内容。
A.正确
B.错误
[单项选择]以劳务或其他非实物形态提供的输出和输入,包括运输、保险、旅游、信息与咨询服务以及技术知识的提供和接受,这种贸易方式称为( )。
A. 专门贸易
B. 转口贸易
C. 劳务贸易
D. 无形商品贸易
[填空题]道岔护轨的组成包括( )、两侧的( )和( )。
[多项选择]文稿标题的不规范之处是( )。
A. 不是一个偏正短语
B. 缺少作者
C. 缺少文种
D. 缺少介词
[单选题]专门负责数据库管理和维护的计算机软件系统称为()。
A.A、SQL-MS
B.B、INFERENCECONTROL
C.C、DBMS
D.D、TRIGGER-MS
[单选题]()是指可根据工作实际需要(如客户投诉、抢修不及时等情况),随时走访大客户
A.不定期走访
B.定期走访
C.工作拜访
D.用电检查
[判断题]数控机床主轴的转速可以用S二位代码或四位代码直接指定。
[单项选择]测量时将内径千分尺放在孔中摆动,使上端测量头与工件孔壁()
A. 有轻微接触感觉
B. 来回摆动
C. 左右摆动
D. 完全没有摆动
[判断题]联程票:指在购票地能够买到换乘地或返乘地带有席位、铺位号的车票。
A.正确
B.错误
[多选题]按南网《电力设备预防性试验规程》的要求,10kV真空断路器的绝缘电阻在大修后不应低于()MΩ,运行中则不应低于()MΩ。
A.2500
B.1200
C.1000
D. 300
[判断题]安全联锁系统的安全等级称为安全度等级。( )
A.正确
B.错误
[多选题]预测用户供电可靠性指标时,采用()和()指标分别预测。
A.内部故障
B.外部故障
C.预安排
D.故障
[判断题]安装锯条时,锯齿方向必须朝后,锯条绷紧程度要适当。( )(中)
A.正确
B.错误
[单项选择]煮沸法错误的是:()
A. 物品完全浸没在沸水中
B. 缝线和橡胶类放入冷水中逐渐煮沸
C. 灭菌时间应从水煮讲算起
D. 玻璃类物品需用纱布包裹
E. 玻璃注射器应将内芯拔出,分别用纱布包裹好
[单选题]省煤器是布置在( )的受热面。A.炉膛出口 B.烟道前 C.尾部烟道 D.风道
A.A
B.B
C.C
D.D
[单项选择]在距离地面()m以上作业称为高空作业。
A. 2.5
B. 3
C. 3.5
D. 4
[单选题] 环丁砜溶剂的存在会造成歧化催化剂的活性( )。
A.上升
B.下降
C.不变
D.视具体催化剂而言
[单项选择]转速负反馈系统中,给定电阻Rg增加后,则()。
A. 电动机转速下降
B. 电动机转速不变
C. 电动机转速上升
D. 给定电阻Rg变化不影响电动机的转