热门试题:
[多选题]根据《交流电气装置的接地设计规范》规定,接地按功能分可分为( )?
A.系统接地
B.保护接地
C.雷电保护接地
D.防静电接地。
[单项选择]Text
A study in the United States finds that girls and young women use tobacco, drugs and alcohol for different reasons than hoys. It says young males (26) use tobacco, drink alcohol or fake drugs (27) excitement. Or they think it will make them more popular. Young females, (28) , may hope to feel happier or reduce (29) or lose weight.
There are physical, psychological and social (30) from smoking, drinking anti using (31) . The report says some of these may (32) more quickly and severely in females. For example, it says they arc more likely to become dependent (33) tobacco than males who smoke just as many cigarettes. (34) it says females have a great (35) of brain damage from too much alcohol.
Here are some other findings.
Girls and young women who drink coffee are much (36) to smoke and drink alcohol — and to start sooner — than those who do not dri
A. likelier
B. better
C. worse
D. easier
[单选题] 为了解决班级中的饮水机每次加热的水量太少的问题,某班通用技术学习小组对饮水机进行了改装。出于安全考虑,只更换了个容量更大些热水储水容器,这样做最不可能会出现的后果是()。
A. 饮水机提供的最终热水温度基本不变
B.饮水机的加热时间会比以前长
C.饮水机的耗电量会比以前增加
D.饮水机消耗的水量会比以前增加
[单选题]施工工时利用率中施工检修工时利用率不得低于 ( )。
A.0.5
B.0.7
C.0.8
D.0.9
[单项选择]阴虚火旺型性早熟首选方剂是()。
A. 二至丸
B. 左归丸
C. 一贯煎
D. 知柏地黄丸
E. 补肾地黄丸
[单选题]摘挂跌落式熔断器的熔管,应使用( ),并派人监护。 (1.0分)
A.绝缘棒
B.验电器
C.操作杆
D.专用工具
[判断题]周围环境状况是否良好、交通是否有利于商品运输是确定商业用房位置优劣的首要因素。()
[单选题]发生于舌下腺的肿瘤其恶性肿瘤所占比例大约为
A.30%
B.10%
C.50%
D.70%
E.90%
[判断题]2.21 直角转弯考试过程中,中途可以停车。
A.正确
B.错误
[单选题]真红细胞化学染色的特点是A.骨髓细胞外铁增高( )
A.碱性磷酸酶NAP积分一般正常
B.骨髓细胞内铁增高
C.碱性磷酸酶NAP积分常增高
D.碱性磷酸酶NAP积分常降低
[判断题] CPU安装完毕后应在CPU表面涂抹硅脂。()
A.正确
B.错误
[单项选择]关于组织细胞增生性疾病,以下描述错误的是()
A. 临床症状、病变范围差异大,好发于儿童
B. X线上可表现为网状结节,主要侵犯中上肺野
C. 可合并支气管扩张,肺大疱,自发性气胸等
D. 晚期不会出现蜂窝肺改变
E. 结节性病变可以和纤维化病变共存
[单选题]轨道车司机、副司机呼唤应答时应集中精力,谨慎架驶,信号显示要求停车(显示红灯, 包括固定和临时)的手比姿势是( ),拳心向左,小臂上下摇动3次。
A.右手拢拳伸拇指和小指
B.右臂拢拳,举拳与眉齐
C.右手拢拳伸拇指直立
[单项选择]下列各句中,没有语病的一项是( )。
A. 能否将群众的呼声记在本子上并不十分重要,最重要的是要看他能把群众的事情记在心头,落实在行动上
B. 每到假日,动物园和海洋馆便成为孩子们最愿去的地方,但对于为人之父的我来说,这却是一件很受累的事情
C. 据北京市体检中心的统计,去年北京市参加高招体检的考生共84362人,专业受限的占18%,多达6900多人
D. 任何公民,只有他的学识基础符合一定要求,并且他上大学不会造成别人的权益受损,他就应该拥有接受高等教育的权利
[单选题]晶闸管型号KP20-8中的K表示( )。
A.国家代号
B.开关
C.快速
D.晶闸管
[单选题]前轮转弯系统在起落架选择活门移动到( )时获得压力。
A.A.中立位置
B.B.收上位置
C.C.放下位置
D.D.转弯位置
[判断题]德天瀑布位于中越边境云南大新县,是亚洲第一大跨国瀑布。
A.正确
B.错误
[单选题]LKD2-T2列控()电源接到黄绿汇流条。
A.逻辑
B.接口
C.220V
D.110V
[单项选择]As most parents of small children will reluctantly admit, nothing can occupy a child quite like television. Unfortunately, the scientific evidence suggests that using TV as a babysitter has its (62) the more time babies spend sitting in front of the screen, the more their social, cognitive and language development may (63) . Recent studies show that TV-viewing tends to decrease babies’ (64) of learning new words, talking, playing and otherwise (65) with others.
A new study published in the Archive of Pediatrics and Adolescent Medicine (66) to that evidence while introducing an (67) new perspective. Many studies have suggested that television hamper learning by (68) youngsters’ ability to interact with others, and according to Dr. Dimitri Christakis, a University of Washington pediatrician (儿科医生), that effect may be (69) when parents get drawn into TV-watching too.
Christakis reports
A. maintaining
B. promoting
C. producing
D. suppressing
[判断题]根据《铁路交通事故调查处理规则》,关闭折角塞门发出列车,至少构成一般D类事故。( )
A.正确
B.错误
[判断题]()溢流阀是安装在液压泵的出口处,它的作用是稳压、安全、卸荷和背压
A.正确
B.错误
[单选题]滑轮的直径不应小于钢丝绳直径的()倍,滑轮应无裂纹、破损等情况。
A.10
B.12
C.14
D.16
[判断题]桥梁基础变位检测只能通过测量永久性观测点平面坐标与高程的变化分析其变位。( )
A.正确
B.错误
[单项选择]证见心悸失眠,头晕目眩,面色无华,妇人月经不调,量少或经闭不行,脐腹作痛,舌淡,脉细弦。方剂宜选用
A. 生脉散
B. 八珍汤
C. 左归丸
D. 四物汤
E. 右归丸
[单选题]、临终患者家属悲伤的表现不包括哪个方面( )
A.情绪感觉方面
B.生理知觉方面
C.社会支持系统
D.认知方面
E.行为方面
[单项选择]上海民食以()著称。
A. 粤港甜风味
B. 四川香辣
C. 麻辣口味
D. 清淡甜美可口
[单选题]为保护美发师的个人身体健康,美发师应坚持( )。
A.洗头时戴口罩
B.饭前、便后要洗手
C.工作服穿着统一
D.操作工具一天一消毒
[单项选择]超声流量计通常具有100%的信号质量,在()的情况下,有可能低于100%。
A. 接近该超声流量计最大压力
B. 接近该超声流量计最高温度
C. 接近该超声流量计最大量程
D. 接近该超声流量计最大声速
[填空题]《铁路旅客运输办理细则》(铁运〔1997〕103号)规定,列车上发现()患者(尤其是对人身健康危害严重、有暴发性流行可能的疾病患者)时,列车长编制客运记录交车站。
[单选题]进入油库不应穿化纤衣服,不应穿带有钉子的鞋,进入油库前应(),登记、交出火种。
A.清点物品
B.有效释放静电
C.双人监护
D.经生产领导同意
[单选题]一般E类事故调查期限为( )
A.15
B.10
C.7
D.2
[单选题]高倍数泡沫灭火系统是指发泡倍数为( )的泡沫灭火系统。
A.<20
B.21~200
C.1001~2000
D.201~1000
[单项选择]在液压系统中,当流量较大(63L/min以上)则阀芯移动控制方式应采用()控制。
A. 手动
B. 机动
C. 电磁
D. 液动
[简答题]参与公司系统所承担电气工作的外单位或外来工作人员工作前,设备运维管理单位应告知( )。
[单项选择]CT扫描使影像诊断的范围大大扩大的根本原因是
A. 病人接受X线量少
B. 密度分辨率高
C. 空间分辨率高
D. 显示的范围大
E. 可获得冠状面、矢状面图像
[单项选择]Mass transportation revised the social and economic fabric of the American city in three fundamental ways. It catalyzed physical expansion, it sorted out people and land uses, and it accelerated the inherent instability of urban life. By opening vast areas of unoccupied land for residential expansion, the omnibuses, horse railways, commuter trains, and electric trolleys pulled settled regions outward two to four times more distant from city centers than they were inthe premodern era. In 1850, for example, the borders of Boston lay scarcely two miles from the old business district. By the turn of the century the radius extended ten miles. Now those who could afford it could live far removed from the old city center and still commute there for work, shopping, and entertainment. The new accessibility of land around the periphery of almost every major city sparked an explosion of real estate development and pulled what we now know as urban sprawl. Between 1890 and 1920, for example, some 2
A. To demonstrate positive and negative effects of growth
B. To show that mass transit changed many cities
C. To exemplify cities with and without mass transportation
D. To contrast their rate of growth
[判断题]案件、事故的报告方式是电话、传真、系统内网络、书面报告、派人专门报告( )
A.正确
B.错误