间歇式拌和机每盘的生产周期不宜少于（）s（其中干拌时间不少于5~10s-我要搜题网

[简答题]某机场(ZXXX)17 日10:54 观测,5/8Fn180 米,8/8Ns600 米,主导能见度400 米,降毛毛雨,见雨凇;11:00 设备显示数据为:2 分钟平均风向241°、平均风速3.6m/s、最大瞬间风速6.4m/s、风向变化范围231-258°,10 分钟平均风向245°、平均风速4.5m/s、最大瞬间风速6.6m/s、风向变化范围224-262°,正在使用的25 号跑道视程为525 米,上升趋势,气温-2.5℃,露点-2.6℃,场面气压1011.3 hPa,修正海平
面气压1018.2hPa。

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[单选题]社会应急救援联动力量,是指能够为灭火救援战斗提供人员、技术、装备支持的_( )__。
A.应急救援队
B.专职消防队
C.志愿消防队
D.社会力量

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[填空题]Evans, Caradoc:
It is a substance that is essential to all known forms of life in its pure form. Water is abundant on Earth. It exists in many places and forms. It appears mostly in the oceans and polar ice caps, but also as clouds, rain water, rivers, freshwater aquifers, and sea ice. On the planet, water is continuously moving through the cycle involving evaporation, precipitation, and runoff to the se

a.
David John:
Water fit for human consumption is called potable water. This natural resource is becoming scarcer in certain places as human population in those places increases, and its availability is a major social and economic concern. Drinking water is water that is intended to be drunk by humans. Water of sufficient quality to serve as drinking water is called potable water whether it is used as such or not. Although most fresh water sources are drinkable by humans, they can be a disease vector or cause long-term health problems if they do not meet certain wat

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[单选题]为了提高安装在细长轴上的齿轮的刚度，可采用加大（）厚度的办法。
A.整个齿轮
B.轮毂部分
C.齿轮部分
D.轮辐

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[单选题]在事故跳闸或发现有接地现象后进行的巡视是：（）。
A.不定期巡视;
B.夜间巡视;
C.特殊巡视;
D.故障巡视。

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[判断题]分布式电源接入时，应满足“安全分区、网络专用、横向隔离、纵向认证”的二次安全防护总体原则，不需配置相应的安全防护设备。
A.正确
B.错误

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[多选题]铁路信号分为（）。
A.手信号
B.视觉信号
C.听觉信号
D.机车信号

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[单选题]起重机操作中,操纵机构突然失灵或操纵杆突然断裂的处置方法。1.若操纵机构突然失灵,驾驶员应先立即拉下紧急开关2、再拉下保护箱闸刀开关切断电源待检修,处理的顺序是?
A.2-1
B.1-2

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[简答题]二级维护发动机竣工出厂有何技术要求？

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[单选题]单选题]室内火灾蔓延的途径多,不包括( )。 (1分)
A.内墙门、间隔墙、楼板孔洞
B.厨房、卫生间
C.闷顶、外墙窗口
D.穿越楼板、墙壁的管道和缝隙

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[单选题]烘烤混酥制品时，一般情况下，烤箱的温度高，烘烤制品所需的时间( )。
A.相对长一些
B.相对短一些
C.一定要短
D.与温度高低无关

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[单选题]工作票实施规范中关于工作变更说法错误的是（）。
A.按一般规定要求填写相应人员姓名、时间
B.工作许可人和工作负责人所持有的工作票均需填写
C.若工作许可人或工作票签发人认为有必要，应履行双签发手续，并在备注栏中办理会签手续
D.工作许可人所持有工作票无需填写

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[判断题]禁止通过处于自动控制状态下驼峰道岔的车辆溜放时采用“单钩溜放”。
A.正确
B.错误

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[单项选择]Raymond A. Moody, Jr. , a Georgia physician, credits his sense of humor for getting him through the terrible grind of medical school. Yet not once, in all those years of training, did professor Moody bring up the health benefits of laughter
"As time went on," Moody relates in his book Laugh After Laugh: The Healing Power of Humor, "I came to feel that a human being’ s ability to laugh is just as valid an indicator of his health as are all those other things that doctors check."
Gradually, many members of the medical establishment are coming around to the same thinking. Dr. William Fry,Jr. , a Stanford University researcher, has studied the beneficial effects of laughter for more than 30 years. "When we laugh," Fry explains, "muscles are activated. When we stop laughing, these muscles relax. Since muscle tension magnifies pain, many people with arthritis, rheumatism and other painful conditions benefit greatly from a healthy dose of laughter. Many headache sufferers fee
A. Circus.
B. Enthusiast.
C. Costume.
D. Clown.

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[判断题]禁止带电插拔普通型电缆终端接头。
A.正确
B.错误

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[单选题]发动机一级维护作业的内容主要有更换发动机机油和( )、补充冷却液、维护或更换空气滤清器滤芯、清洁火花塞、维护燃料系统、维护点火系统等。
A. 机油滤清器
B. 制动液
C. 冷却液
D. 高压线

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[单项选择]正构烷烃主要用来评价（）
A. 强极性
B. 弱极性
C. 非极性
D. 中极性

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[单项选择]蛛网膜下腔出血与脑出血鉴别，下列哪项最重要（）
A. 活动中发病
B. 头痛、呕吐
C. 脑脊液含血量多少
D. 发病后出现偏瘫、失语等
E. 脑膜刺激征

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[多选题]有关胃的描述正确的是（）
A.胃大部分位于左季肋区，小部分位于腹上区
B.幽门位于第11胸椎体左侧
C.幽门部可分左侧的幽门管和右侧的幽门窦
D.胃底由胃短动脉供血
E.近胃小弯侧的胃壁由胃网膜左、右动脉供血

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[多选题] 国家电网公司设备状态评价中心需要协助检修（）、（）、（）的研究应用。
A.新技术
B.新工艺
C.新方法
D.新方案

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[单项选择]间歇式拌和机每盘的生产周期不宜少于（）s（其中干拌时间不少于5~10s）。
A. 30
B. 35
C. 45

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[单项选择]间歇式拌和机每盘的生产周期不宜少于（）s（其中干拌时间不少于5~10s）。A. 30B. 35C. 45

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[单项选择]间歇式拌和机每盘的生产周期不宜少于（）s（其中干拌时间不少于5~10s）。
A. 30
B. 35
C. 45