热门试题:
[单选题]对室内热源,在不影响生产工艺的情况下,可进行
()降温。
A.喷雾
B.物理
C.制冷
[判断题]每个Rule对象可以规定不同的处理item的parse_item方法。
填空题
A.正确
B.错误
[单选题]无定形沉淀的颗粒直径的范围是( )。
A.小于 0.02μm
B.0.1~1μm
C.1~10μm
D.大于 10μm
[多项选择]下列腧穴中,各穴之间距离2寸的是
A. 郄门与间使
B. 大陵与内关
C. 阳池与外关
D. 郄门与曲泽
E. 曲池与手三里
[单项选择]确定胎龄及估计胎儿发育最简便可靠的方法是()
A. 测宫高、腹围
B. B超
C. 羊水测定胎儿成熟度
D. 羊水泡沫功能监测
E. 胎儿胎盘功能监测
[单项选择]流行性出血热早期低血压的主要原因是 ( )
A. 继发细菌感染
B. 小动脉痉挛
C. 高热、大汗、呕吐所致血容量下降
D. 严重腔道出血
E. 小血管通透性增加,大量血浆外渗
[单项选择]下列哪项治疗不属于免疫重建()
A. 脐血干细胞移植
B. 胎儿胸腺移植
C. 骨髓移植
D. 外周血干细胞移植
E. 输注转移因子
[多选题]小儿惊风的主要临床特征是
A.口噤
B.角弓反张
C.皮肤瘙痒
D.四肢抽搐
[单项选择]高侧壁心肌梗死()。
A. V1~V5ST段抬高,异常Q波形成
B. Ⅱ、Ⅲ、aVFST段抬高,异常Q波形成
C. V5~V7、Ⅱ、Ⅲ、aVF、ST段抬高,异常Q波形成
D. Ⅰ、aVLST段抬高,异常Q波形成
E. Ⅱ、Ⅲ、aVF、v3R~v6RST段抬高,异常Q波形成
[填空题]乳胶漆是( ),它是以( )为基料,填料经过研磨分散后加入各种助剂精制而成的涂料。
[单项选择]慢性支气管炎的诊断标准是
A. 咳嗽、咳痰或伴喘息反复发作2年以上
B. 咳嗽、咳痰或伴喘息反复发作,每年至少3个月,并持续2年或以上者
C. 咳嗽、咳痰伴喘息3个月以上
D. 长期有咳嗽,咳痰伴喘息经一般内科治疗不愈者
E. 以上都不是
[判断题]给犯罪嫌疑人上铐后,犯罪嫌疑人就不能逃跑或发动攻击。
A.正确
B.错误
[单项选择]The first paragraph mentions three ways of activating the saliva in the mouth.
[填空题]无线电台试验完毕后( )信号,呼叫:“电台试验完毕,准备作业。”
[单项选择]解表药主要归
A. 肺、脾经
B. 肺、肝经
C. 肺、膀胱经
D. 肺、肾经
[单选题]单极型半导体器件是()。
A.二极管
B.双极陆二极管
C.场效应管
[不定项选择题]共用题干
Operation Migration
If you look up at the sky in the early fall in the northern part of North America,you may see groups of birds.These birds are flying south to places where they can find food and warmth for the winter.They are migrating(迁徙).The young birds usually learn to migrate from their parents.They follow their parents south.In one unusual case,however,the young birds are following something very different.These birds are young whooping cranes,and they are following an airplane!
The whooping crane is the largest bird that is native to North America.These birds al-most disappeared in the 1800s.By 1941,there were only about 20 cranes alive.In the 1970s, people were worried that these creatures were in danger of disappearing completely.As a result,the United States indentified whooping cranes as an endangered species that they needed to protect.
Some researchers tried to help.They began to breed whooping cranes in special parks to increase the number of birds.This plan was successful.There were a lot of new baby birds.As the birds became older,the researchers wanted to return them to nature.However,there was a problem:These young birds did not know how to migrate.They needed human help.
In 2001,some people had a creative idea.They formed an organization called Operation Migration.This group decided to use very light airplanes,instead of birds,to lead the young whooping cranes on their first trip south.They painted each airplane to look like a whooping crane.Even the pilots wore special clothing to make them look like cranes.The cranes began to trust the airplanes,and the plan worked.
Today,planes still lead birds across approximately 1,200 miles(1,931 kilometers), from the United States-Canadian border to the Gulf of Mexico.They leave the birds at differ-ent sites.If a trip is successful,the birds can travel on their own in the future.Then,when these birds become parents,they will teach their young to migrate.The people of Operation Migration think this is the only way to maintain the whooping crane population.
Operation Migration works with several other organizations and government institutes.Together,they assist hundreds of cranes each year.However,some experts predict that soon,this won't be necessary.Thanks to Operation Migration and its partners,the crane population will continue to migrate.Hopefully,they won't need human help any more.
Whooping cranes migrate in winter to______.
A.find warmth and food
B.raise baby whooping cranes
C.get human help
D.lay eggs
[单选题]为加强电力监控系统作业现场安全管理,规范各类作业人员的行为,保证电力监控系统业务及数据安全,依据国家有关制度、规程,结合电力监控系统作业实际,制定《国家电网公司变电检修管理规定(试行)》。
A.A.正确
B.B.错误
[单选题]《铁路旅客运输规程》第四十五条规定,有下列( )哪一种情况时补收票价,核收手续费。
A.持站台票上车送客未下车但及时声明时,补收至前方下车站的票款
B.持站台票上车并在开车20分钟后仍不声明时,按无票处理
C.持用低等级的车票乘坐高等级列车、铺位、座席时,补收所乘区间的票价差额
D.持用伪造或涂改的车票乘车时,除按无票处理外并送交公安部门处理
[单项选择]美国纸浆的出口量今年会显著上升,出口量上升的原因在于美元的贬值使得日本和西欧的造纸商从美国购买纸浆比从其他渠道购买纸浆便宜。
下面哪个是为得出以上结论所做的假设( )
A. 日本和西欧的工厂出产的纸制品今年会急剧增加。
B. 美国生产的纸浆质量足以满足日本和西欧造纸商的生产目的。
C. 如果成本不成为影响因素,日本利西欧的造纸商会倾向于使用美国生产的纸浆。
D. 对日本和西欧生产的纸制品的需求今年不会急剧增加。
[单项选择]When did Daylight Saving Time become observed nationally
A. In 1966.
B. In 1960.
C. In 1948.
D. In 1939.
[多选题]PMS系统中,下列设备不需要创建铭牌的有( )。
A.导线
B.杆塔
C.断路器
D.线路避雷器
[判断题]在预算执行中一般不制定新的减收增支政策和措施,确需制定的,应当采取相应的增收节支措施。()
[判断题]中央预算单位零余额账户是指中央预算单位在代理银行开设的,用于记录、核算和反映财政授权支付活动的账户。
A.正确
B.错误
[多选题]燃烧是一种氧化还原反应,一般伴有()等基本特征表明它不同于一般的氧化还原反应。
A. 放热
B. 发光
C. 发烟
D. 火焰
[单项选择]下述关于数据库系统的叙述中正确的是
A. 数据库系统减少了数据冗余
B. 数据库系统避免了一切冗余
C. 数据库系统中数据的一致性是指数据类型一致
D. 数据库系统比文件系统能管理更多的数据
[单项选择]“水火既济”的“水火”所指的脏是()
A. 心脾
B. 肝肺
C. 脾肾
D. 心肾
E. 肝肾
[单选题]生产矿井延深新水平时,必须对( )的自燃倾向性进行鉴定。
A. 首采区煤层
B.最厚煤层
C.所有煤层
[单选题] 第216题
供电企业在接到居民用户家用电器损坏投诉后,应在12小时内派员赴现场进行调查、核实。
A.正确
B.错误
[单项选择]粤剧、广东音乐和()被誉为“岭南三秀”。
A. 茶叶
B. 丝绸
C. 陶瓷
D. 岭南画派
[简答题]车站发生乘客伤亡事故时电客列车司机处理方法?
[单选题]车辆换算闸瓦压力表中当自动制动机列车主管压力为600KP时,普通货车(23t轴重)重车位的每辆换算闸瓦压力( )kN。
A.145
B.165
C.180
D.195
[判断题]按规定,进行带电或临近带电体跨越架的搭设时,由有经验的工作人员完成搭设。( )
A.正确
B.错误
[单选题]环网柜打开柜门前的操作不包括( )
A.停电
B.验电
C.合上接地刀闸
D.悬挂标示牌
[单选题] 危害因素时,比一般职业人群更易于遭受( )危害和罹患职业病或者可能导致原有自身疾病病情加重,或者在从事作业过程中诱发可能导致对他人生命健康构成危险的疾病的个人特殊生理或者病理状态
A. 常见病
B. 职业病
C. 多发病
D. 慢性病
[单项选择]选聘咨询公司的短名单是由( )中经过筛选形成的。
A. 投标的公司
B. 长名单
C. 雇主熟悉的公司
D. 国际金融组织推荐的公司