热门试题:
[判断题]( )新车在走合期内,其零件的磨损速度较慢。
A.正确
B.错误
[单项选择]计算机硬件功能部件中,用来进行算术运算和逻辑运算的部件是()
A. 控制器
B. 存储器
C. 输入设备
D. 输出设备
E. 运算器
[单选题]避雷针与接地极应可靠连接,独立避雷针须有()接地引下线,接地牢固,黄绿相间的接地标识清晰
A.单
B.双
C.三
D.四
[判断题]“二次确认”服务是指业务订购关系生效后,您将收到系统发送的订购资费确认提醒。
A.正确
B.错误
[单项选择]下列物资供应进度控制的工作内容中,( )是反映物资的需要与供应的平衡、挖潜利库,安排供应的计划。
A. 物资需求计划
B. 物资储备计划
C. 物资供应计划
D. 国外进口物资计划
[单项选择]结构化程序设计只允许由3种基本结构来构成任何程序。下列选项中,______不是结构化程序设计的基本结构。
A. 选择结构
B. 可选结构
C. 循环结构
D. 顺序结构
[多选题]塔式起重机起重量限制器有( )。
A.压力式
B.电气式
C.机械式
D.电子式
E.传感式
[单选题]按照发生电击时电气设备的状态,电击可分为直接接触电击和( )。
A.单相接触电击
B.两相接触电击
C.间接接触电击
D.非接触电击
[单选题]茉莉花茶艺的“落英缤纷”的含义是( )。
A.冲水
B.洗壶
C.投茶
D.烫杯
[单项选择]
Passage Three
It is possible that the weather of the world may be changing. Some scientists imagine that this could even mean the beginning of another ice age. The effects of such a change in weather on human population of the world would be frightening.
Recent research suggests that the warming trend (倾向) of the past hundred years or so may be coming to an end. During the past ten years, scientists tell us that the temperature of the world has dropped a little. This would have effects on wind and rain in the weather picture.
Scientists believe clouds may be an important factor (因素) in changing the amount of heat on the earth. Another possibility is that man’s agriculture and industry ways may affect the natural weather.
Scientists imagine such a change in weather on human population would be ()
A. terrified
B. surprised
C. horrible
D. frightened
[单选题]无线列调车站设备日常检修项目蓄电池电压测量周期是( )。
A.季
B.日
C.月
D.年
[单选题]《公路养护工程质量检验评定标准 第一册 土建工程》JTG 5220-2020规定养护工程质量评定采用( )。
A.综合评分法
B.加权平均法
C.合格率法
D.定性定量法
[判断题]制动管排风时,三通阀或分配阀控制向向副风缸充入相同压力的压力空气,并使制动缸排风。
A.正确
B.错误
[单项选择]患者女性,39岁。身高164cm、体重,65kg,近半年多饮、多尿伴乏力就诊。体检:BP20/10.3kPa(150/100mmHg),余未见明显异常。空腹血糖9mmol/L。提示:如患者有糖尿病史10年,近2月来感双足趾端麻木,大腿皮肤针刺样疼痛伴尿失禁、无汗就诊。体检:消瘦,营养欠佳,双手骨间肌萎缩,肌力Ⅳ级。双肺未闻及干湿啰音,病理反射阴性。空腹血糖10.1mmol/L,血酮(-)。提问:下列哪项是最可能的诊断().
A. 糖尿病并发脑血管意外
B. 糖尿病性神经病变
C. 糖尿病性感觉神经病变
D. 糖尿病性自主神经病变
E. 糖尿病微血管病变
F. 糖尿病下肢动脉粥样硬化
[判断题]子弹未上膛时,打开枪支保险,子弹上膛时,关闭枪支保险。
A.正确
B.错误
[单项选择]属于五行之火的是
A. 心
B. 肝
C. 脾
D. 肺
E. 肾
[填空题]In a (26) economy, the consumer usually has the choice of several different brands of the same product. Yet (27) their labels, the products are often nearly (28) . One manufacturer’s toothpaste tends to differ very little from another manufacturer’s. Thus, manufacturers are (29) with a problem—how to keep sales high enough to stay in business. Manufacturers solve this problem by advertising. They try to appeal to consumers in various ways. In fact, advertisements may be (30) into two types according to the kind of appeals they use.
One type of advertisement tries to appeal to the consumer’s (31) mind. It may offer a claim that seems scientific. For example it may say the dentists (32) Flash toothpaste. In selling a product, the truth of the advertising may be less important than the appearance of truth. A scientific approach gives the appearance of truth.
Another type of advertisement tries to amuse the (3
[单选题]二次侧核相时,应防止二次侧( )。
A.断开
B.短路或接地
C.开路
D.通电
[单选题]药物的LD50愈大,则其( )
A.毒性愈大
B.毒性愈小
C.安全性愈小
D. 安全性愈大
E. 治疗指数愈高
[单项选择]霍乱在一个县行政区域内发生,1周内发病10~29例,或波及2个以上县,或市级以上城市的市区首次发生。属()突发公共卫生事件
A. Ⅰ级
B. Ⅱ级
C. Ⅲ级
D. Ⅳ级
[单选题]受电弓的最小电气间隙:( )mm。
A.280
B.320
C.350
D.380
[判断题]研发新品咖啡是咖啡研发师的主要工作职责
A.正确
B.错误
[单项选择]下列哪项不是脱髓鞘疾病的常见病理改变()
A. 神经纤维髓鞘破坏
B. 病变分布于中枢神经系统白质
C. 小静脉周围炎性细胞浸润
D. 神经轴索严重坏死
E. 神经细胞相对完整
[单项选择]Every Saturday, Mr. Brown went (Example: (0) ) the market to buy food and other things. He put (41) in a big basket. He was old and weak, so he always (42) a man to carry the basket home for him. But one Saturday, while he (43) home in front of the man with (44) , the man ran away (45) it. The next week, when Mr. Brown went to the market again , a friend of his said , "Look, (46) ! That man took away your food last week ! " Mr. Brown at once ran behind a shop, and stayed there (47) the man left the market. His friend was very (48) , "Why did you do that. he asked. "Well, "said Mr. Brown, "that man was carrying my basket when he left me a week ago. He will want me to pay him for (49) , and that (50) me more than a basket full of food./
A. nothing
B. the basket
C. some days’ work
[填空题]快捷键Ctrl+O的功能相当于执行文件菜单中的______命令。
[单选题]个体自我意识发展的开始时期是在
A.胎儿期
B.婴儿期
C.幼儿期
D.学龄期
E.青春期
[单项选择]目前,防火墙一般可以提供4种服务。它们是( )。
A. 服务控制、方向控制、目录控制和行为控制
B. 服务控制、网络控制、目录控制和方向控制
C. 方向控制、行为控制、用户控制和网络控制
D. 服务控制、方向控制、用户控制和行为控制
[判断题]损失补偿原则的派生原则包括物上代位原则和分摊原则。
A.正确
B.错误
[单项选择]
A. during
B. when
C. while
D. as
[判断题]轴流式风机导叶的作用是将气流的动能转换成全压。( )
A.正确
B.错误
[单选题]汽轮机运行中发现凝结水导电度增大,应判断为( )。
A.凝结水压力低
B.凝结水过冷却
C.凝汽器铜管泄漏
D.凝汽器汽侧漏空气
[判断题]31、融资租赁合同不属于借款合同。
A.正确
B.错误
[单项选择]造成单相接地的因素很多,如一相导线的断线落地、树枝碰触导线、引线或跳线,风对杆塔放电等。它的危害使三相平衡系统受到破坏,造成非故障相的电压升高到原来的()倍,可能会引起非故障相绝缘的破坏。
A. 2倍
B. 3倍
C. √3倍
D. 1/√3倍
[单选题]中共第一次独立自主地运用马克思主义原理解决自己的路线、方针、政策的会议是()。
A.中共一大
B.遵义会议
C.中共八大
D.中共十一届三中全会
[填空题]《动车组列车应急吸污组织工作的通知》(客管电〔2017〕32号),高铁客服调度员或客运调度员接到()()的应急吸污请求后,经值班主任(值班副主任)准许,及时向有关车站、南昌车辆段、福州动车段发布应急吸污作业的调度命令,抄送有关列车调度员,并通知列车长。列车长转报司机、随车机械师。其他联系作业流程按总公司要求执行。
[判断题] 集中器对被监测电压采用有效值采样,采样周期至少每秒2次,并作为预处理值储存。
A.正确
B.错误