热门试题:
[单选题]低阶通道开销完成（ ）的通道性能监控
A.VC-1
B.VC-2
C.VC-3
D.VC-12
[多项选择]以下是草原鼠害的主要危害的是（）。
A. 降低草原生产力
B. 啃食植被使草原退化
C. 传播疾病影响人类健康
D. 造成草原火灾
[多选题]安全生产监督管理部门和其他负有安全生产监督管理职责的部门依法开展安全生产行政执法工作，行使的职权有（ ）。
A.进入生产经营单位进行检查，调阅有关资料，向有关单位和人员了解情况
B.对检查中发现的安全生产违法行为，当场予以纠正或者要求限期改正
C.对检查中发现的事故隐患，应当责令立即排除
D.必要的时候可以影响被检查单位的正常生产经营活动
[单选题]用光学经纬仪通过扫描法建立测量基准平面来检验大型工件的平面度误差时，是依据（）来确定测量基准面的。
A.最小条件
B.两点定一线
C.三点定一面
D.中心线
[单项选择]（）是指一个人对周围的客观事物（包括、事、物）的意义，重要性的总评价和总看法。
A. 世界观
B. 价值观
C. 人生观
D. 道德观
[单选题] 持续经营从( ) 上对会计核算进行了有效界定。
A.时间
B.空间
C.内容
D.时间和空间
[单选题]健康保险费率的计算以( )为基础。
60
A.平均保额损失率
B.平均金额损失率
C.保险费用损失率
D.保险金额损失率
[单项选择]适用于潮湿，有机械外力，有轻微腐蚀的气体场所的明暗配线的管子应为( )管。
A. 电线
B. 硬塑料
C. 焊接钢
D. 半硬塑料
[单选题]部浅静脉：( )
A.全部注入颈外静脉
B.与下颌后静脉的后支汇合
C.借面深静脉与翼丛相交通
D.有静脉瓣，一般血液不会逆流至颅内
E.无上述情况
[单选题]使用砝码比较法校验压力表,是将被校压力表与活塞式压力计上的()在活塞缸内产生的压力进行比较,从而确定被校压力表的示值误差。
A.重力
B.标准砝码
C.砝码
[单选题]下列方剂中，主治肺痿的是
A.益胃散
B.麦门冬汤
C.养阴清肺汤
D.玉液汤
E.琼玉膏
[单选题]汽轮机调节系统静特性指机组在稳定工况下( )的关系。
A. 功率和转速
B. 转速和流量
C. 流量和压力
D. 功率和流量
[单选题]用环氧树脂浇注或缠绕作包封的干式变压器即称为( )。
A.气体绝缘干式变压器
B.环氧树脂干式变压器
C.H级绝缘干式变压器
[单选题]单位定期存款采用积数计息法计息，在存期内按存入日挂牌公告的定期存款利率计算利息，遇到利率调整需要分段计息。（ ）
A.正确
B.错误
[单项选择]为保证灭火效果，储气式干粉灭火系统储气瓶放置点环境温度不低于（）。
A. 25℃
B. 10℃
C. 0℃
D. -5℃
[单项选择]
某城市空气质量较差。检测结果显示，在主要污染物中，PM10。颗粒浓度严重超标，PM2.5颗粒浓度及有害气体浓度尚在正常范围。如果你是城市决策者，采取以下哪些措施能在影响最小的情况下．最有效地改善空气质量（）？
①整改郊区水泥厂②整改郊区造纸厂③市区车辆限号行驶④改善郊区植被环境
A. ①②
B. ①④
C. ③④
D. ②③
[单项选择]下列哪项不是湿邪为病的主要表现
A. 困重
B. 闷胀
C. 酸楚
D. 无汗
E. 舌苔腻浊
[多选题]机车进电力整备线（），安全作业区空闲后再动车。
A.在隔离区防护信号前停车
B.在隔离区防护信号后停车
C.确认隔离区防护信号开放
D.确认隔离区防护信号关闭
[单项选择]一个成功标志设计的核心和灵魂是（）.
A. 标志定位
B. 标志表现
C. 标志创意
D. 标志主题
[单项选择]腹泻病人饮食不宜
A. 高热量
B. 高蛋白
C. 高脂肪
D. 高维生素
E. 少纤维
[判断题]采用母联分段断路器BZT接线方式的供电系统，母联BZT装置可以动作两次。
[判断题]1234. 1234.经公司培训合格取得任职资格的防护员，当年可不参加本单位组织的适应性培训。
A.正确
B.错误
[单选题]古代诗歌阅读鉴赏课上，教师指出《早春呈水部张十八员外》一诗中，“天街小雨润如酥”一句所运用的是比喻修辞手法。同时请学生联想其他运用了比喻手法的诗句。以下符合要求的一项是()。
A.羌笛何须怨杨柳，春风不度玉门关
B.忽如一夜春风来，千树万树梨花开
C.感时花溅泪．恨别鸟惊心
D.怀旧空吟闻笛赋．到乡翻似烂柯人
[单选题]三相变压器Dyn11绕组接线表示一次绕组( )。( )
A.三角形
B.星型
C.方型
[多选题]重大操作实施强列要求的内容有
A.必须严格按照《重大操作实施方案》按步骤实施
B.涉及现网的重大操作必须在话务闲时进行操作，业内正常的话务闲时为0:00-4:00，新疆等地区有一定的时差；
C.根据应急预案的判决条件，及时采取必要的应急预案；
D.现网重大操作时需与后方支持专家保持密切沟通。
E.略
F.略
[单项选择]{{B}}B{{/B}}
Jack’s mother asked him to move the
family piano from the dining room to the living room. He was strong, but not
strong enough to move the piano any farther than the doorway (门口) between the
rooms. So he called Peter for help.
"You take this end, "Jack
told Peter when he got there. "and I’ll go around to the dining room and
take the other end. "
Peter nodded(点头), and when Jack was in
place (在适当位置) and gave the word, he pushed (推) , and pushed, but it still didn’t
move. They had a rest.
"Boy", Peter said, "I don’t know if we’re
ever going to get it into the dining room. I’ve pushed..."
"Push
Jack repeated, "I thought you were pulling it into the living
room!" |
The family piano was ______ before Jack’s mother asked him to move it.
A. in the dining room
B. in the living room
C. in the bedroom
D. between the living room and the dining room
[单选题]下列关于安装高处作业吊篮配重的陈述,其中正确的一项是( )。
A.配重件应稳定可靠地安放在配重架上并有防止移动措施
B.配重件堆放在配重架上即可
C.配重件稳定安放在配重架上,防止移动的措施可有可无
D.只要满足重量要求,任何物品均可作为配重件
[单项选择]地基验槽如达不到设计要求或与勘察设计资料不符，则应采取措施进一步处理或工程变更，由（）提出处理方案
A. 建设单位
B. 施工单位
C. 监理单位
D. 原设计单位
[单项选择]动脉疾病的最常见症状是（）
A. 溃疡
B. 肿胀
C. 发凉、麻木
D. 发热
E. 以上都不是
[单选题]B737-700飞机，在一次飞行中载有87个乘客，按要求应装多少台电池供电的扩音器
A.2个，1个在最前端，另一个在客舱的最后端
B.1个,在客舱的最后端
C.1个,在客舱的最前端
D.3个
[单项选择]急性腹膜炎的主要体征是（）
A. 腹肌紧张
B. 肠鸣音亢进
C. 腹部压痛
D. 移动性浊音
E. 腹膜刺激征
[不定项选择题]共用题干
第二篇
Research by the University of Exeter has revealed that ants have a big impact on their local en-vironment as a result of their activity as"ecosystem engineers"and predators.The study,published in the Journal of Animal Ecology,found that ants have two distinct effects on their local environment.
Firstly,through moving of soil by nest building activity and by collecting food they affect the level of nutrients in the soil.This can indirectly impact the local populations of many animal groups, from decomposers to species much higher up the food chain.
Secondly,they prey on a wide range of other animals,including larger prey which can be at-tacked by vast numbers of ant workers.
Dirk Sanders,an author of the study from the university's Centre for Ecology and Conservation, said:"Ants are very effective predators which thrive in huge numbers.They're also very territorial and very aggressive,defending their resources and territory against other predators.All of this means they have a strong influence on their surrounding area."
"In this research,we studied for the first time how big this impact is and the subtleties of it. What we found is that despite being predators,their presence can also lead to an increase in density and diversity of other animal groups.They genuinely play a key role in the local environment,haying a big influence on the grassland food web,"Sanders said.
The study,carried out in Germany,studied the impact of the presence of different combinations and densities of black garden ants and common red ants,both species which can be found across Eurone.including in the UK.It found that a low density of ants in an area increased the diversity and density of other animals in the local area,particularly the density of herbivores and decomposers.At higher densities ants had no or the opposite effect,showing that predation is counteracting the positive influence.
Dr Frank van Veen,another author on the study,said:"What we find is that the impact of ants on soil nutrient levels has a positive effect on animal groups at low levels,but as the number of ants increases,their predatory impacts have the bigger effect一thereby counteracting the positive influence via ecosystem engineering."
Ants are important components of ecosystems not only because they constitute a great part of the animal biomass but also because they act as ecosystem engineers.Ant biodiversity is incredibly high and these organisms are highly responsive to human impact,which obviously reduces its richness. However,it is not clear how such disturbance damages the maintenance of ant services to the ecosystem.Ants are important in below ground processes through the alteration of the physical and chemical environment and through their effects on plants,microorganisms,and other soil organisms.
Why are ants compared to ecosystem engineers?
A.Because they build their own nests.
B.Because they collect food.
C.Because their activity affects the environment.
D.Because they are predators.
[单选题]某化工厂发生一起火灾事故，造成2人死亡1人重伤，3人轻伤，事故发生1个月后，重伤者因救治无效死亡，依据《生产安全事故报告和调查处理条例》的规定，下列关于事故补报的说法，正确的是（ ）。
A.该厂应在3日内向安全监管部门补报该事故伤亡情况并说明情况
B.该厂无须向安全监管部门补报该事故伤亡人数更新情况
C.安全监管部门应该根据更新的伤亡人数重新界定该事故等级
D.安全监管部门应向本级人民政府补报该事故伤亡人数更新情况
[多选题]经鼻内行鼻窦手术时损伤蝶窦外侧壁可出现（ ）
A.失明
B.大出血
C.眼球活动障碍
D.以上都不是
[单选题]一体化机车信号选择ZPW—2000A下行使用的载频是（ ）HZ。
A.是1701.4(1700-1)—2001.4(2000-1)
B.是2001.4(2000-1)—2601.4(2600-1)
C.是2001.4(2000-1)—2301.4(2300-1)
D.是1701.4(1700-1)—2301.4(2300-1)
[单项选择]Passage One
Questions 26 to 28 are based on the passage you have just heard.
A. Radiation from the sun.
B. Radiation from the Van Allen Belts.
C. Radiation from the meteors.
D. Radiation from the Van Allen Belts and from the meteors.
[单选题]()的作用是接受刺激和传导兴奋。
A.脑神经
B.脊神经
C.神经元
D.脊髓
[单选题]放散大量热量或有害气体的厂房宜采用()。
A.单层建筑
B.双层建筑
C.多层建筑
