热门试题:
[填空题]We generally view the family as being one of our most stable institutions: yet, our family sys tern has{{U}} (36) {{/U}}a number of changes in the past. Two hundred years ago, marriages were often arranged by parents, with economic{{U}} (37) {{/U}}being the most important factor of who married whom. Two hundred years ago, divorce was{{U}} (38) {{/U}}; now, more than one out of three marriages are in{{U}} (39) {{/U}}. Two hundred years ago, women did not work out of the home, and children were an economic{{U}} (40) {{/U}}; now nearly 50 percent of married women work outside the home, and children are a{{U}} (41) {{/U}}responsibility.
In our{{U}} (42) {{/U}}society, the family is now changing even more rapidly than it did in the past.
In{{U}} (43) {{/U}}the future of the American family, some authorities foresee the family as racing toward extinction. They say that{{U}} (44) {{/U}}, and this will be its only function.
Family optimists, on the other hand, pre
[单选题] 激光检测仪能够检测出从( )泄漏出的甲烷。
A.近距离
B.远距离
C.地下矿井
D.超远距离
[单选题]特种作业人员、特种设备作业人员应按照国家有关规定，取得相应资格，并（ ），定期体检。
A.定期考评
B.按期复审
C.通过测试
D.经过培训
[多选题]外单位承揽公司系统工程项目的施工人员或参与公司系统电气工作的外来人员，应熟悉安规并经考试合格，经设备运行管理单位认可，方可参加工作。工作前，设备运行管理单位应告知（）。
A.现场电气设备接线情况;
B.危险点;
C.安全注意事项;
D.监理人员情况
[单选题]额定电抗百分数是表示在电抗器一相中流经额定电流时( )的比值。
A.电流是幅值与额定相电压
B.感抗压降与额定相电压
C.感抗压降与额定线电
D.电压是幅值与额定相电压
[单项选择]会发生移植排斥反应的有（）
A. 同种异体移植
B. 同种同型移植
C. 同种移植
D. 自体移植
E. 以上都不正确
[单项选择]线性表以（）方式存储，能进行折半查找。
A. 关键字有序的顺序
B. 顺序
C. 链接
D. 二叉树
[单项选择]依中国法规定，对于合同或财产权益纠纷提起的诉讼，如果合同在中国领域内签订或履行；或诉讼标的物在中国领域内，或被告在中国领域内有可供扣押的财产，或被告在中国领域内设有代表机构，人民法院即可行使管辖权，但这只适用于( )
A. 在中国领域内有住所的被告
B. 在中国领域内有惯常居所的被告
C. 在中国领域内没有住所的被告
D. 在中国设有习惯居所的被告
[多项选择]电烧伤后致急性肾衰竭的因素有（）
A. 血红蛋白尿和肌红蛋白尿
B. 氮质血症
C. 酸血症
D. 高钠血症
E. 高钾血症
[多选题]根据生产安全事故造成的人员伤亡或者直接经济损失，事故一般分为（ ）等级。
A.一般事故
B.较大事故
C.重大事故
D.特别重大事故
[单项选择]在相关资产或负债初始确认后的每个资产负债表日，企业至少应当在附注中披露持续以公允价值计量的每组资产和负债信息中对于第三层次的公允价值计量的披露中，说法不正确的是（）。
A. 对于第三层次的公允价值计量，企业应当披露使用的估值技术、输入值和估值流程的描述性信息
B. 当变更估值技术时，企业还应当披露这一变更以及变更的原因
C. 企业应当披露期初余额与期末余额之间的调节信息
D. 企业应当披露使用的估值技术和输入值的描述性信息
[单选题]______, mobile phones are playing an important role in modern life.
A.As long as it is known
B.What is known to all
C.Since it is known
D.As is known to all
[判断题]任何情况下，对接焊缝考试结果均可以适用于角焊缝。 ( )
A.正确
B.错误
[判断题] 手抬机动消防泵组所采用的动力多为柴油发动机。( )（易）
A.正确
B.错误
[单选题]未纳入月度检修计划的，或者未按照规定时间提交检修申请的设备检修统称为（ ）。
A.计划检修
B.紧急抢修
C.非计划检修
D.临时检修
[多项选择]在Ⅲ、Ⅳ建筑气候区，住宅的布局主要考虑的问题是：
A. 日照
B. 夏季防热
C. 组织自然通风
D. 冬季的日照
E. 防风沙
[单项选择]
Text 1
Since the dawn of human ingenuity, people have devised ever more cunning tools to cope with work that is dangerous, boring, burdensome, or just plain nasty. That compulsion has resulted in robotics — the science of conferring various human capabilities on machines. And if scientists have yet to create the mechanical version of science fiction, they have begun to come close.
As a result, the modern world is increasingly populated by intelligent gizmos whose presence we barely notice but whose universal existence has removed much hum an labor. Our factories hum to the rhythm of robot assembly arms. Our banking is done at automated teller terminals that thank us with mechanical politeness for the transaction. Our subway trains are controlled by tireless robo-drivers. And thanks to the continual miniaturization of electronics and micro-mechanics, there are already robot systems that can perform some kinds of brain and bone surgery with su
A. the use of machines to produce science fiction
B. the wide use of machines in manufacturing industry
C. the invention of tools for difficult and dangerous work
D. the elite’s cunning tackling of dangerous and boring work
[多选题]应当先履行债务的当事人，有确切证据证明对方有（ ）情形的，可行使不安抗辩权，中止履行合同。
A.经营状况严重恶化
B.转移财产、抽逃资金，以逃避债务
C.丧失商业信誉
D.信用等级降低
E.有丧失或者可能丧失履行债务能力的其他情形
[单选题]汽缸压力表用于测量汽缸内（ ）行程时的空气压力。
A.进气
B.压缩
C.作功
D.排气
[多选题]辩证的否定是( )
A.事物的自我否定
B.事物发展的环节
C.事物联系的环节
D.扬弃
[判断题]垂直裂纹长度含轨面部分裂纹长度在辙叉心和辙叉翼部位1条裂纹长度超过50mm均为重伤
A.正确
B.错误
[判断题]可以采用换元积分法计算。
A.正确
B.错误
[单选题]哪个不是新版《高速铁路技规》新增的项目（ ）。
A.基建
B.制造及其验收部分
C.限界安全保护区
D.非正常行车组织
[多选题]货物装载高度须满足( )规定的电气化区段安全距离。
A.《技规》
B.《行规》
C.《站细》
D.《铁路超限超重货物运输规则》
[多选题]消防正压式空气呼吸器的使用方法（ ）
A.检查气瓶压力及系统气密性。逆时针方向旋转瓶阀手轮至少2圈
B.将气瓶底部朝向自己，然后展开肩带，并将其分别置于气瓶两边。两手同时抓住背架体两侧，将呼吸器举过头顶。同时，两肘内贴近身体，身体稍微前倾，使呼吸器自然滑落于背部，同时确保肩带环顺着手臂滑落在肩膀上。然后，站直身体，向下拉下肩带，将呼吸器调整到舒适的位置，使臀部承重
C.将肩带上的雄腰扣插入雌腰扣内，然后将腰带左右两侧的伸出端同时向侧后方拉动，将腰带收紧。检查面罩组件，戴上面罩，检查面罩气密性
D.打开瓶阀，逆时针方向旋转瓶阀手轮至少2圈
E.使用结束后，卸下面罩，关闭供气阀
[简答题]在高土壤电阻率的地区，降低接地电阻宜采用哪些方法？
[多选题]运用车队负责指导司机日常管理工作，其主要内容主要包括那些内容（ ）
A.月工作计划审批
B.技术业务指导
C.月度工作（添乘指导
D.现场检查、LKJ（EOAS）
[单项选择]Is it difficult for you to get up in the morning Yes Then Hiroyuki of Japan has a special bed for you. Hiroyuki’s bed will get you up in the morning!
The bed is connected to an alarm clock. First, the alarm clock rings. You have a few minutes to wake up. Next a tape recorder in the bed plays soft music or other pleasant sounds. The tape recorder in Hiroyuki’s then says in a sweet voice, "Wake up, darling, please. " A few minutes later, a second recording plays. The second recording can be loud music or unpleasant sounds. Hiroyuki hears a recording of his boss. His boss shouts, "Wake up immediately, or you’ll be late!"
If you don’t get up after the second recording, you’ll be sorry. A mechanical "foot" is in the bed. The mechanical foot kicks you in the head. Then the bed waits a few more minutes. What! You’re still in bed! Slowly, the tip of the bed rises higher and higher. The foot of the bed goes lower and lower. Finally, the bed is vertical (垂直的). You slide off the
A. three
B. four
C. five
D. six
[单选题]下列选项中，体现了集体主义原则的是( )
A.极端个人主义
B.享乐主义
C.厂兴我荣，厂衰我耻
D.拜金主义
[单选题]配电变压器高、低压绕组声响异常属于( )。
A.危急缺陷
B.严重缺陷
C.一般缺陷
D.轻微缺陷
[单选题]变电站、线路以及发电厂内作业前，应先分清（ ），选好工作位置。
A.高压、低压
B.一次、二次
C.进线、出线
D.相线、零线
[单选题]细菌的化学组成中，________占主要成分。 ( )
A.蛋白
B.水
C.脂肪
D.碳水化合物
[单选题]“地球号”探测船能钻到地下多少米?
A.2000米
B.5000米
C.7000米
[多选题]电连接按安装位置不同分为（ ）电连接。
A.横向
B.道岔
C.锚段关节
D.分段
