热门试题:
[填空题]在热功转换过程中,传递和输出动力的柴油机部件叫()。
[单项选择]分段沉淀法分离皂苷是利用混合物中
A. 皂苷元结构类型的差异
B. 皂苷元极性的差异
C. 皂苷极性的差异
D. 皂苷酸碱性的差异
E. 皂苷分子量大小的差异
[多选题]制动器刹不住的原因是( )。
A.闸瓦过度磨损
B.杠杆的纹链关节被卡住
C.制动轮上有油污
D.锁紧螺母松动
[判断题]“十四五”时期,公司“一体四翼”的发展目标是:2025年,服务大局再上新台阶,引领带动展现新作为,发展韧性实现新提高,业务布局达到新水平, 经营业绩取得新成效,服务质效得到新提升。
A.正确
B.错误
[单选题]FAS表示( )。
A.火灾自动报警系统
B.综合监控系统
C.环境与设备监控系统
D.所有选项均不对
[单项选择]一8岁患者,跌倒致左上1牙冠斜折,即刻来院就诊。口腔检查见穿髓孔大,叩(+),采用活髓切断术,这种治疗成功的关键是()
A. 盖髓剂的选择
B. 无菌操作
C. 正确的开髓
D. 去除稍多些的健康冠髓
E. 正确选择暂封剂
[单选题] 电阻通电流后所产生的热量与电流平方、电阻及通电的时间成正比,这就是( )。[1.0分]
A. 基尔霍夫定律
B. 楞次定律
C. 焦耳-楞次定律
D. 焦耳定律
[单项选择]《素问·水热穴论》的“胃之关”是指
A. 肺主宣发肃降,通调水道,为水之上源
B. 肾中阳气的蒸腾气化作用
C. 肾主宰水液代谢的作用
D. 肝主疏泄,调畅气机,促进水液运行的作用
E. 脾主运化水液,为“胃行其津液”的作用
[单选题](27730)调质处理就是( )的热处理。(1.0分)
A.淬火+低温回火
B.淬火+中温回火
C.表面淬火+回火
D.淬火+高温回火
[单选题]社会主义国家机关在其法定的职权范围内依照法定程序,创制、认可、修改和废止法律以及规范性法律文件的活动,是( )。
A. 社会主义法律的适用
B.社会主义法律的制定
C.社会主义法律的遵守
D.社会主义法律实施的监督
[单项选择]Even plants can run a fever, especially when they’re under attack by insects or disease. But unlike humans, plants can have their temperature taken from 3,000 feet away—straight up. A decade ago, adapting the infrared scanning technology developed for military purposes and other satellites, physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress. The goal was to let farmers precisely target pesticide (杀虫剂) spraying rather than rain poison on a whole field, which invariably includes plants that don’t have pest (害虫) problems.
Even better, Paley’s Remote Scanning Services Company could detect crop problems before they became visible to the eye. Mounted on a plane flown at 3,000 feet at night, an infrared scanner measured the heat emitted by crops. The data were transformed into a color-coded map showing where plants were running "fevers". Farmers could then spot-spray, using 40 to 70 percent less pesticide than they o
A. resorting to spot-spraying
B. consulting infrared scanning experts
C. transforming poisoned rain
D. detecting crop problems at an early stage
[多项选择]系统的特点很多,各种不同的系统又有其各自的特殊性,但从系统定义可以看出,一般系统存在以下主要特点( )。
A. 功能性
B. 整体性
C. 层次性
D. 相对稳定性
[多项选择]建设工程委托监理合同由哪些部分组成()。
A. 标准条件
B. 协议书
C. 通用条件
D. 专用条件
E. 附录A、B
[单选题]200
A.3800
B.4000
C.4200
D.4400
[单项选择]女性患者,32岁,系统性红斑狼疮4年,一直服用泼尼松,队前进食后出现上腹部疼痛,疼痛呈条带状向腰背部放散,伴恶心呕吐、腹胀。查体:体温39.6℃,血压105/60mmHg,脉搏90/min,呼吸18/min,神志清楚,上腹部有压痛及反跳痛,Murphy征阴性,肠鸣音减弱。
经检查:血清淀粉酶320U(Somogyi法),尿淀粉酶890U,白细胞16.5×109/L,该病最可能的病因为
A. 胆源性
B. 药物源性
C. 感染性
D. 外伤性
E. 自身免疫性
[多选题]下列小额贷款利息收入免征增值税的有()
A.农户
B.小型企业
C.微型企业
D.个体工商户
[多项选择]我国现行人民币汇率制度具有( )特征。
A. 双重汇率
B. 市场汇率
C. 单一汇率
D. 有管理的浮动汇率
E. 多重汇率
[单选题]DLCA板正常工作时,RUN灯是( )。
A.长亮
B.橙色
C.灭
D.闪烁
[单选题]某品牌羽绒服,在促销活动中,九折降价并让利40元销售,仍可获利10%;八折降价销售可获利20元。问不举行促销活动,该羽绒服每件的利润是多少元?( )
A.180
B.190
C.200
D.220
[多选题]串联补偿装置不平衡试验,应按被试设备的( )、( )和( )来决定。
A.电压
B.电流
C.容量
D.现场实际试验设备条件
[单选题]多形性腺瘤中上皮、肌上皮细胞与何组织相混合
A. 纤维样
B. 肌样
C. 粘液样、软骨样
D. 软骨样
E. 水肿样
[判断题]遇有以暴力方法抗拒或者阻碍空警依法履行职责或者暴力袭击空警,危及空警生命安全的,经警告无效,可以对行为人使用警绳、手铐、警棍、匕手、特种防暴枪等警械或者武器。
A.正确
B.错误
[多选题] 导致溺水的因素( )
A.遭遇水下急流、旋涡等
B.碰撞暗桩、礁石,被水草、淤泥所困等
C.在河流中遭遇船舶撞击、受到动物攻击等
D.景观池、游泳池内漏电导致人员触电
E.车辆落水导致司乘人员被困车内,无法逃出
[单选题]( )使用万能钥匙或一组密码全部解锁等解锁工具(钥匙)。
A.可以
B.站长同意后可以
C.不得
D.在有人监护情况下可以
[多项选择]下列发问行为,恰当的做法是()
A. 在学生“心求通而未得,口欲言而不能”之时发问
B. 倾向于把问题分配给成绩好的学生
C. 在提问之前适当停顿,并配以适当的引导语
D. 发问时语言清晰、简单,尽量一次到位,避免复述
[判断题]系统电压偏低会降低网损。
A.正确
B.错误
[单项选择]预防术后肺不张最主要的措施是
A. 氧气吸入
B. 蒸汽吸入
C. 应用祛痰药物
D. 应用大量抗生素
E. 多翻身拍背,多做深呼吸,鼓励咳嗽
[判断题]蓄电池在并联浮充工作状态下可以起一定的滤波作用
A.正确
B.错误
[单选题]在电气化铁路上,电力机车是利用()作为牵引电流的回路的。
A.钢梁
B.道床
C.钢轨
D.轨枕
[单项选择]患者男性,56岁,因胸闷、胸痛2小时入院。入院查体:血压86/60mmHg,心率44次/分,律齐。心电图示:V1~V5导联ST段抬高、Q波形成。患者恢复窦性心律后应该采取的处理方法()
A. 口服胺碘酮
B. 静滴利多卡因
C. 静滴异丙肾上腺素
D. 静滴普罗帕酮
E. 立即行ICD植入术
[判断题]我国刑法的追诉时效,最低为5年,最高为10年。( )
[单选题]混合水罐启动前不检查的是( )。
A.搅拌机
B.柴油机
C.蝶阀
D.离心泵
[多项选择]根据房产税法的规定,下列房产免征房产税()
A. 国家机关、人民团体、军队的房产
B. 由国家财政部门拨付事业费的单位的房产
C. 宗教寺庙、公园、名胜古迹的房产
D. 个人的房产
E. 用于生产经营或者出租的房产
[单选题]People have speculated for centuries about a future without work.Today is no different,with academics,writers,and activists once again 1 that technology is replacing human workers.Some imagine that the coming work-free world will be defined by 2.:A few wealthy people will own all the capital,and the masses will struggle in an impoverished wasteland..A different and not mutually exclusive 3 holds that the future will be a wasteland of a different sort,one 4 by purposelessness:Without jobs to give their lives 5,people will simply become lazy and depressed.6,today’s unemployed don’t seem to be having a great time.One Gallup poll found that 20 percent of Americans who have been unemployed for at least a year report having depression,double the rate for 7 Americans.Also,some research suggests that the 8 for rising rates of mortality,mental-health problems,and addicting 9 poorly-educated,middle-aged people is a shortage of well-paid jobs.Perhaps this is why many 10 the agonizing dullness of a jobless future.But it doesn’t 11 follow from findings like these that a world without work would be filled with unease.Such visions are based on the 12 of being unemployed in a society built on the concept of employment.In the 13 of work,a society designed with other ends in mind could 14 strikingly different circumstances for the future of labor and leisure.Today,the 15 of work may be a bit overblown.“Many jobs are boring,degrading,unhealthy,and a waste of human potential,”says John Danaher,a lecturer at the National University of Ireland in Galway.These days,because leisure time is relatively 16 for most workers,people use their free time to counterbalance the intellectual and emotional 17 of their jobs.“When I come home from a hard day’s work,I often feel 18,”Danaher says,adding,“In a world in which I don’t have to work,I might feel rather different”—perhaps different enough to throw himself 19 a hobby or a passion project with the intensity usually reserved for 20 matters.18选?
A.ignored
B.tired
C.confused
D.starved
[判断题]固定资产贷款调查由2名调查岗尽职调查,但是在人员不足网点,也可以1人前去调查。
A.正确
B.错误
[填空题]在《荀子·天论》“受时与治世同,而殃祸与治世异”句子中,“与”的词性是(),它的语法作用或意义是()。