题目详情
题目详情:

[单项选择]鼓风机属于()的一种。
A. 离心风机
B. 轴流风机
C. 往复风机
D. 回转风机

热门试题:

[单选题]科学合理的包装应能够( )的保护商品,最大限度地避免运输途中各种外界因素对商品产生的不良影响。
A.最经济
B.最美观
C.最合适
D.最有效
[多项选择]《刑事诉讼法》规定,犯罪嫌疑人应当如实回答侦查人员有关本案的提问。该项规定意味着犯罪嫌疑人不享有沉默权。嫌疑人如果始终保持沉默将会产生什么样的后果( )
A. 在对其定罪以后,可以作为从重处罚的根据
B. 可以将其沉默直接作为定罪的根据
C. 由于没有犯罪嫌疑人的供述,故不能终结刑事侦查
D. 如果其他证据充分确实,足以认定被告人有罪,仍然可以侦查终结
[填空题]
There’s a dirty little secret in many American homes--couples
fight about the housework. It’s No. 1 issue my husband and I argue (1) ______
about. We argue over who is doing more, who should be doing which
chores, and why my standards are unrealistic. There is always too
much to take care and, with two kids, neither one of us has the energy (2) ______
to keep top of it all. When the laundry, dirty dishes, and dust pile (3) ______
out, I feel stressed and resentful and the fighting begins. Most (4) ______
couples are trying to split three full-time jobs--his, her, and managing (5) ______
the house--between two people. There just aren’t enough hours in
the day. The current arrangement is leading to a nation of tired,
angry couples with no time to relax with each other and their children. (6) ______
It is estimated that the first child triggers an i
[单选题]移动业务信道主要用于传输话音和()
A.信令
B.数据
C.控制信息
D.图像
[单项选择]教育心理学作为一门科学发展至今,大致经历了( )个时期。
A. 三
B. 四
C. 五
D. 六
[判断题]遇暴风雨雪或夜间无照明时禁止手推调车。
A.正确
B.错误
[判断题]装设无功自动补偿装置是为了提高功率因数采取的自然调整方法之一。( )
A.正确
B.错误
[单项选择] Did the Ancient Greeks and Romans have a sense of fashion Historians of dress have traditionally claimed that fashion in the modern sense did not exist in Greece and Rome, but this assertion rests upon a misconception of rather sophisticated Greco-Roman attitudes toward physical appearance, as well as upon definitions of "dress" and "fashion" that are too limited. As is abundantly clear from their art and literature, the ancients attached great importance to ideals of bodily perfection and to outward appearance in general. Both the Greeks and the Romans demonstrated, from their earliest history, an extraordinary awareness of the potential of the body (and various modifications that could be made to it) as a means of marking social, political, religious, and even moral distinctions, aside from the opportunities dress and body decoration represent for self-expression or the pursuit of beauty. The ancients manipulated the expressive potential of clothing and adornments in a myriad
A. help develop society
B. break societal norms
C. mark various distinctions
D. help develop a sense of fashion
[单项选择]患者女,55岁。气急、干咳2周,有高血压病史5年,有长期吸烟史。体检:气管居中,心律齐,120次/分,A2>P2,右胸叩呈浊音,呼吸音消失,肝肋下3cm,X线胸片示右侧大量胸腔积液,心电图是电轴左偏,左室高电压。若胸腔积液检查为血性,找到腺癌细胞,为找原发病灶最有价值的辅助检查是()
A. 胸部体层摄影
B. 胸部CT
C. 放射性核素扫描
D. 彩色超声波
E. 支气管造影
F. CT-PET检查
[判断题]发生水害断道,列车长要帮助老、弱、病、残、孕等重点旅客解决实际困难。
A.正确
B.错误
[单选题]
硝酸甘油抗心绞痛的主要作用原理是
A.收缩冠状动脉,降低心肌自身负荷
B.减慢心率,降低心肌耗氧量
C.减少NO对心肌的损伤
D.扩张外周血管,降低心脏负荷和心肌耗氧量
E.降低血压,反射性兴奋交感神经改善心肌供血
[单选题]用人单位未按规定缴纳残疾人就业保障金的,按照《残疾人就业条例》的规定,由保障金征收机关提交( )予以警告,责令限期缴纳。
A.财政部门
B.残联
C.稽查局
D.公安部门
[单选题]1M004 A级检修时发电机定子圆度检査各实测半径与平均半径之差不应大于设计空气间隙值的( )。
A.±1%
B.±2%
C.±3%
D.±4%
[单选题]下列选项中,不属于时钟系统的技术特点__________
A. 扩展方便
B.兼容性好
C.高精确性、高可靠性
D.复杂性强
[单项选择]某船LBP=68.4m,在Δ=6034t时,纵稳心半径R=79m,则相应的每厘米纵倾力矩MTC=()×9.81kN.m/cm。
A. 77
B. 62
C. 73
D. 70
[单项选择]烧伤伤及真皮层,局部皮肤除红肿外、还出现水泡,疼痛剧烈。属于()。
A. 一度烧伤
B. 二度烧伤
C. 三度烧伤
D. 四度烧伤
[单项选择]胸部DR摄影时为显示被肋骨遮蔽而观察不到的肺部病变,应选用哪种后处理方法()。
A. 灰阶处理
B. 窗位处理
C. 时间减影法
D. 能量减影法
E. 放大摄影
[单选题]一侧上肢或下肢不能运动或运动无力,称为
A.偏瘫
B.局限性瘫痪
C.单瘫
D.交叉性瘫痪
E.僵硬
[判断题]蛋氨酸和胱氨酸之间存在拮抗关系。
[不定项选择题]共用题干 The Most Wonderful Islands
The Palm Islands are the largest artificial islands in the world and are under construction in Dubai,in the United Arab Emirates.They are being developed as tourist,leisure,and residential resorts,and will increase the coastline of the country by 120 kilometers.
After four years of planning and careful consideration of the environmental issues,construction started in 2001.Dutch engineers with experience of reclaiming land from the sea were employed in the building of the first two islands.The site for all three islands is an area of the sea where the water is not very deep.Sand is taken from the seabed and sprayed into the construction site.Although the shallow water facilitates this process,the islands are still very exposed to the currents and tidal movements of the sea.Rocks are used to hold the sand in place resulting in a large crescent(月状的)structure.This acts as a breakwater and protects the islands from the sea.
The first two islands are in the shape of date palm trees and consist of a trunk and 17 fronds,or leaves, coming off the trunk.The first island,named Palm Jumeirah,has three five-star hotels in the trunk,and luxury homes in the leaves.It is astonishing that when these homes went on sale in 2004,they were all sold within three days.
The second palm,Jebel Ali,was started in 2002 and is designed to be an entertainment centre.Six marinas(小游艇船坞)are planned,with a water theme park,and homes built on stilts(桩柱)in the water.
The Palm Deira is planned to be the largest of the three islands,with a length of 14km and a width of 8.5km,an area larger than the city of Paris.It will consist of residential properties,marinas,shopping malls,sports facilities and clubs.These will be open to both residents and tourists.
More artificial islands,the World Islands , are now being constructed near the Palm Jumeirah.They consist of 300 private islands grouped into the shape of the continents of the world and will be used for estates , private homes , community islands , and resorts.
Unquestionably , these artificial islands are one of the wonders of the modern world.They will also maintain Dubai' s status as one of the leading tourist destinations in the region. The water theme park in Jebel Ali will attract more tourists.
A.Right
B.Wrong
C.Not mentioned
[判断题]掌沃通内的免填单需要电子签名。
A.正确
B.错误
[单选题]单个壁槽式的炸药器材库的最大允许炸药存量为()㎏。
A.300
B.500
C.400
[多项选择]根据我国《合同法》,以下对买卖合同中标的物的风险负担的表述错误的是:
A. 特定物的风险在合同成立后即由买受人承担
B. 在途货物的风险自合同成立后即转移给买受人
C. 需要运输的标的物,自交付给买受人后风险转移给买受人
D. 在买受人因标的物质量不符合要求拒绝受领的情况下,风险转移给买受人
[多选题]下列情形中,人民警察可以依法使用武器的有( )。
A. 袭击人民警察,尚未危及人民警察生命安全
B. 实施爆炸犯罪后逃跑
C. 持械抢劫公私财物
D. 在押人犯聚众暴乱
[单选题] 符合慢性阻塞性肺气肿的体征是()
A. 叩诊呈鼓音
B. 单侧语颤减弱
C. 单侧呼吸运动减弱
D. 气管偏移
E. ,呼气时间延长
[判断题]在计算企业所得税时,企业发生的长期待摊费用,从费用发生的次月起,在不少于5年的期限内分期摊销。 ( )
A.正确
B.错误
[多选题]隔离开关在运行中可能出现哪些异常?( )。
A.接触部分过热
B. 绝缘子破损.断裂,导线线夹裂纹
C.支柱式绝缘子胶合部因质量不良和自然老化造成绝缘子掉盖
D.以上都不是
[多选题]个人贷款调查的基本程序要求有()。
A.A.系统查询和资料审阅
B.B.见客谈话和上门核实
C.C.客户评级
D.D.形成调查结论
[判断题]高速公路交通设施由路、桥、隧道等土木建筑物和各类机电设备组成。( )
A.正确
B.错误
[多项选择]制定起草企业绩效管理制度的基本要求有( )。
A. 整体性与系统性
B. 全面性与完整性
C. 公正性与客观性
D. 明确性与具体性
E. 相关性与有效性
[多选题]当事人必须履行人民法院发生法律效力的()。
A.判决
B.裁定
C.通知
D.调解书
城管赵某因小贩汪某乱摆摊位与其发生争吵。汪某恼怒,上前与赵某撕打起来。此事件被闻讯赶来的公安人员制止。事后经医院诊断,赵某属轻微脑震荡。对此事件,区公安局认为,汪某属于妨碍执行公务的违法行为,作出拘留10天的处罚决定。汪某不服向市公安局申请复议,复议机关维持原处罚决定。汪某仍不服向人民法院提起诉讼。
[单项选择]以下风险中不能通过分散投资加以规避的是( )。
A. 企业的信用风险
B. 企业的经营风险
C. 企业的财务风险
D. 经济周期性波动风险
[单项选择]この 课————、何か 质问が ありますか。  
A. に よると
B. に ついて
C. に 対して
D. として
[判断题]在有限空间作业环境可能发生变化时,应进行持续或定时检测。
A.正确
B.错误
[单选题]转移发生较早的癌是:
A.结肠癌
B.子宫内膜腺癌
C.胃癌
D.肝细胞癌
E.鼻咽癌
[判断题]高强度螺栓连接无缺少、松动,超拧或欠拧螺栓不超过节 点螺栓总数的5%,栓焊梁螺栓联结部位摩擦系数不小于 0.35
A.正确
B.错误

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