热门试题:
[单选题]下列不属于无机房电梯传动方式的是( )。
A.液压传动方式
B.钢丝绳传动方式
C.摩擦轮驱动方式
D.直线电动机驱动方式
[多选题]根据载荷作用方式的不同,强度可分为()。
A.A、复合强度
B.B、抗拉强度
C.C、抗压强度
D.D、抗弯强度
E.E、综合强度
[多选题]在以下( )区域内动火,应填用变电站一级动火工作票。
A.主控室
B.电缆沟道(竖井)
C.变压器、压变、充油电缆等注油设备
D.蓄电池室(铅酸)
[单项选择]最有可能的诊断是
A. 化脓性关节炎
B. 结核性关节炎
C. 骨性关节炎
D. 色素沉着绒毛结节性滑膜炎
E. 大骨节病
[多项选择]在侦查过程中,可以检查()的人身。
A. 犯罪嫌疑人
B. 被害人
C. 与案件有牵连的人
D. 可能藏有赃物的人
[单选题]小剂量阿司匹林预防血栓形成的作用机制是( )。
A.抑制凝血酶原的形成
B.直接抑制血小板聚集
C.抑制PGEs的生成
D.抑制TXA2(血栓素)的合成
E.直接溶解血栓
[单项选择]EI32-JD计算机联锁的特点是()
A. 分散控制和集中信息管理
B. 集中控制
C. 分散信息管理
D. 集中控制和分散信息管理
[判断题]环控电控柜网关工作电压为380V。( )
A.正确
B.错误
[多选题]《行规》规定,救援列车的列车基本编组表和救援管辖范围表应包括()、型号、吨位和救援管辖区段范围等内容。
A.设置地点
B.编组顺序
C.限速要求
D.起重机朝向
[单项选择]下列哪种物质既是贮能物质,又是直接的供能物质
A. 葡萄糖
B. 脂肪酸
C. 三磷酸腺苷
D. 二磷酸腺苷
[单项选择]
睡眠是大脑为维持正常机能而产生的[ ]抑制状态。通过对整个睡眠过程的仔细观察,发现它具有两种不同的状态:其一为脑电波呈现同步化慢波的时相,称为慢波睡眠;其二是脑电波呈现去同步化快波的时相,称为快波睡眠。
人们在刚刚入睡后的睡眠大都属于慢波睡眠。根据脑电波的变化特征,慢波睡眠时相可以分为1、2、3、4期。这四个期代表着睡眠由浅入深的过程。1期:呈现低振幅的脑电波,频率快慢混合,以4~7次/秒的θ波为主。这一时期一般是在睡眠开始或夜间短暂苏醒又入睡之时。2期:也呈现低振幅的脑电波,中间常出现短串的12~14次/秒的梭形睡眠波和一些复合波。这一时期是慢波睡眠的主要成分,代表着浅睡过程。3期:常呈现短暂的高振幅、频率为1~2次/秒的δ波。4期:脑电波也是呈现出高振幅波形且以δ波为主,代表着深睡状态。3期和4期仅有量的不同而无质的差别。通常认为,4期慢波睡眠具有促进精力和体力恢复的功能。
快波睡眠是睡眠过程中周期性出现的一种激动状态,其脑电图与觉醒时相似,呈现低振幅的去同步化快波,也称为异相睡眠。并且,由于这种类型的睡眠常伴随着眼球的快速运动,所以也被称为快速眼球运动睡眠。快波睡眠可能与脑的发育和记忆的巩固有关。
下列理解,不符合文意的一项是()。
A. 慢波睡眠是睡眠过程中脑电波呈现同步化时相
B. 慢波睡眠从第1期到第4期代表着睡眠由浅入深的过程
C. 慢波睡眠都有促进精力和体力恢复的功能
D. 慢波睡眠一般不伴有眼球的快速运动
[判断题]旅客列车应配备急救药箱,培训红十字救护员,对旅客在乘车中突发疾病、创伤,能够提供及时的紧急救助和简易救护治疗,保障旅客身体健康和生命安全。
A.正确
B.错误
[判断题] 变电所中,信号设备所使用的电源为操作电源。()
A.正确
B.错误
[单选题]对代维工作,应制定相应的服务标准,明确服务质量和(),确保客户服务等级承诺(SLA)的有效执行。
A.服务时限
B.服务内容
C.服务等级
D.服务标准
[多选题]在光传送网中,OTU1和OTU2具有相同的()
A.帧结构
B.帧字节
C.帧频率
D.帧周期
[单选题]对用户履行供用电合同的情况及违约用电、窃电行为进行检查叫:( )
A.供用电合同履约检查
B.经营性检查
C.用户侧事故调查
D.违约用电、窃电检查
[简答题]基层农村社会治理有效运行的根本前提是什么?
[单项选择]
近年来,我国政府把实行科学民主决策、推进依法行政、加强行政监督作为政府工作的三项基本准则。从监督体系上看,对我国政府具有外部监督职能的中央国家机关有()
①全国人民代表大会
②国家监察部和国家审计署
③最高人民法院和最高人民检察院
④中国人民政治协商会议
A. ①③
B. ①④
C. ③④
D. ②④
[单项选择]在国外工业发达国家已得到普遍应用,一般适用于工业领域中的石化、交通和电力部门,近年来,我国广泛用于高层建筑内的柴油机发电机房的固定式灭火系统是()。
A. 自动喷水干湿两用灭火系统
B. 自动喷水预作用系统
C. 重复启闭预作用灭火系统
D. 水喷雾灭火系统
[判断题]活塞环是气缸镜面和活塞间的间隙的密封元件。
[单选题]当主轴瓦油隙过大时,对柴油机活塞有( )主要影响。
A.冷却效果下降
B.传热慢
C.热负荷加重
D.热应力加重
[简答题]医院开展科研统计分析工作,应当包括哪些具体的项目和资料?
[单选题]一个24位地址和8位字长的存储器由4M X 1位的RAM芯片组成,若数据总线为8位,问需要多少位作为片选( )。
A.5
B.4
C.3
D.2
[判断题]燃气经营者应当对其从事瓶装燃气送气服务的人员(和车辆)加强管理,并承担相应的责任。
A.正确
B.错误
[单项选择]总酸度的测定结果通常以样品中含量最多的那种酸表示。要在结果中注明以哪种酸计,下列哪种酸不能用来表示食品中总酸的含量()。
A. 苹果酸
B. 乙酸
C. 酒石酸
D. 硫酸
[多选题]全程衰减测试采用光源、光功率计,对光链路对1310nm和1490 nm波长进行测试,包括活动( )的插入衰减;同时将测得数据记录在案,作为工程验收的依据。
A.活动光连接器
B.光分路器
C.接头
D.ODF架
[单项选择]关于胰岛素的作用下列哪一项是错误的
A. 促进脂肪合成,抑制脂肪分解
B. 抑制蛋白质合成,抑制氨基酸进入细胞
C. 促进葡萄糖利用,抑制糖原分解和异生
D. 促进K+进入细胞,降低血糖
E. 使细胞内cAMP量减少
[单选题]临时回送客车底列车按( )办理接发列车进路。(应知应会-《行规》第23条)
A.货物列车
B.动车组列车
C.旅客列车
D.路用列车
[判断题]配电线路、设备停电时,对不能直接在地面操作的断路器(开关)、隔离开关(刀闸)的操作机构应加锁。
A.正确
B.错误
[单选题]柜面业务中,B级授权人员的金额授权权限为。
A.10万(含)至100万(含)
B.20万(含)至100万(含)
C.10万(不含)至100万(含)
D.20万(不含)至100万(含)
[单选题]在昼间遇降雾、暴风雨雪及其他情况,致使停车信号显示距离不足( )m 时, 应使用夜间信号。
A. 500
B. 800
C. 1000
D. 1100
[单选题](____)是两处控制一盏电灯示意图。
A.图<img src="/tupian/shandong/jining/dgjc14.png"/>
B.图<img src="/tupian/shandong/jining/dgjc15.png"/>
C.图<img src="/tupian/shandong/jining/dgjc16.png"/>
D.图<img src="/tupian/shandong/jining/dgjc17.png"/>
[判断题]WJ-7型扣件安装铁垫板时,轨底坡方向应朝向轨道外侧。
A.正确
B.错误
[单项选择]疫源地消毒有几种()
A. 3种;
B. 2种;
C. 4种;
D. 5种
[不定项选择题]The number of Americans who read books has been declining for thirty years, and those who do read have become proud of, even a bit over-identified with, the enterprise. Alongside the tote bags you can find T-shirts, magnets, and buttons printed or sewn with covers of classic novels; the Web site Etsy sells tights printed with poems by Emily Dickinson. A spread in The Paris Review featured literature-inspired paint-chip colors. The merchandising of reading has a curiously undifferentiated flavor, as if what you read mattered less than that you rea
D. In this climate of embattled bibliophilia, a new subgenre of books about books has emerged, a mix of literary criticism, autobiography, self- help, and immersion journalism: authors undertake reading stunts to prove that reading--anything--still matters. "I thought of my adventure as Off-Road or Extreme Reading," Phyllis Rose writes in "The Shelf: From LEQ to LES" , the latest stunt book, in which she reads through a more or less random shelf of library books. She compares her voyage, to Ernest Shackleton's explorations in the Antarctic. "However, I like to sleep under a quilt with my head on a goose down pillow," she writes. "So I would read my way into the unknown--into the pathless wastes, into thin air, with no reviews, no best-seller lists, no college curricula, no National Book Awards or Pulitzer Prizes, no ads, no publicity, not even word of mouth to guide me."
She is not the first writer to set offon armchair expedition.
A. J. Jacobs, a self-described "human guinea pig", spent a year reading the encyclopedia for "The Know-It-All: One Man's Humble Quest to Become the Smartest Person in the World" (2004). Ammon Shea read all of the Oxford English Dictionary for his book "Reading the OE
D: One Man, One Year, 21730 Pages" (2008). In "The Whole Five Feet" (2010), Christopher Beha made his way through the Harvard Classics during a year in which he suffered serious illness and had a death in the family. In "Howard's End Is on the Landing" (2010), Susan Hill limited herself to reading only the books that she already owned. Such "extreme reading" requires special personal traits: perseverance, stamina, a craving for self-improvement, and obstinacy. Rose fits the bill. A retired English professor, she is the author of popular biographies of Virginia Woolf and Josephine Baker, as well as "The Year of Reading Proust" (1997), a memoir of her family life and the manners and mores of the Key West literary scene. Her best book is "Parallel Lives" (1983), a group biography of five Victorian marriages. (It is filled with marvellous details and set pieces, like the one in which John Ruskin, reared on hairless sculptures of female nudes, defers consummating his marriage to Effie Gray for so long that she sues for divorce.) Rose is consistently generous, knowledgeable, and chatty, with a knock for connecting specific incidents to large social trends. Unlike many biblio-memoirists, she loves network television and is un-nostalgic about print; in "The Shelf' she says that she prefers her e-reader to certain moldy paperbacks. The way most of us choose our reading today is simple. Someone posts a link, and we click on it. We set out to buy one book, and Amazon suggests that we might like another. Friends and retailers know our preferences, and urge recommendations on us. The bookstore and the library could assist you, too--the people who work there may even know you and track your habits--but they are organized in an impersonal way. Shelves and open stacks offer not only immediate access to books but strange juxtapositions. Arbitrary classification breeds surprises--Nikolai Gogol next to William Golding, Clarice Lispector next to Penelope Lively. The alphabet has no rationale, agenda, or preference
Why does Phyllis Rose compare her reading to Ernest Shackleton's explorations in the Antarctic?
A. To emphasize the adventurous and stirring experience of reading.
B. To emphasize the role of reading in broadening people's horizon.
A.
B.To emphasize the amusement in reading without specific guidance.
C.
D.To emphasize the challenges in reading books of varying categories.