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[单选题]使用二氧化碳灭火器灭火时,人应站在哪个位置?
A.下风方向
B.上风方向
C.任意方向

热门试题:

[简答题]八生饮子功效与作用
[多选题]以下属于特种作业人员的是( )
A.建筑电工
B.建筑架子工
C.建筑起重信号司索工
D.高处作业吊篮安装拆卸工
E.混凝土浇筑工
[单选题]电气系统可以自动探测和隔离电气故障。 试题种类: 驾驶员晋级理论题库B757
A. 对
B. 错
[单选题]挖坑前,应与有关地下管道、电缆等设施的()取得联系,明确地下设施的确切位置,做好防护措施。
A.主管单位
B.运行单位
C.维护单位
D.建设单位
[单项选择]以下关于网络需求分析的描述中,哪个是错误的______
A. 网络需求分析是设计、建设与运行网络系统的关键
B. 网络需求分析要从实际出发,通过现场调研,收集第一手资料
C. 网络需求分析是为了确定总体目标和阶段性目标
D. 以上描述都正确
[单项选择]探诊的要点如下,不正确的为
A. 防止刺伤软组织
B. 须有支点且动作轻柔
C. 穿髓孔需用尖探针探入
D. 可检查龋齿、牙周袋和窦道等
E. 探牙周袋用钝头专用探针
[单选题]治疗胁痛肝阴不足证,应首选
A.沙参麦冬汤
B.麦门冬汤
C.益胃汤
D.玉女煎
E.一贯煎
[简答题]淀积层(illuvialhorizon)
[单项选择]
Teachers need to be aware of the emotional, intellectual, and physical changes that young adults experience. And they also need to give serious (21) to how they can be best (22) such changes. Growing bodies need movement and (23) , but not just in ways that emphasize competition. (24) they are adjusting to their new bodies and a whole host of new intellectual and emotional challenges, teenagers are especially self-conscious and need the (25) that comes from achieving success and knowing that their accomplishments are (26) by others. However, the typical teenage lifestyle is already filled with so much com petition that it would be (27) to plan activities in which there are more winners than losers, (28) , publishing newsletters with many student-written book reviews, (29) student artw
A. care
B. nutrition
C. exercise
D. leisure
[填空题]Dear Hilda,
I’ve just heard of my mother has suddenly been 76. ______
taken ill, and I’d like to go and see what she is. The 77. ______
trouble is that I can take him with me then. 78. ______
Do you think if you would possibly able to look after 79. ______
him for a week You have him for a week last year, 80. ______
and you said he had been no trouble, but had got 81. ______
on well with your little sister, Jane. 82. ______
If I could have him, I would be able to bring 83. ______
him along any time that suits for you. But if it is not 84. ______
convenient, do hesitate to say so. 85. ______
                         Yours
                          Sarah

[单选题]经营者出售烟草对难以判明是否已成年的可视同为成年人,因此可以向所有人出售香烟。[1.0]
A.是
B.否
[判断题]如小旅客休息,应主动询问家长,是否需要乘务员帮助保温热食,需要时再为其提供。( )
A.正确
B.错误
[单选题]患者,女性,25岁,停经60天,恶心、呕吐2周,2~4次/天。护士采取的正确的护理是
A.输液治疗
B.流质
C.口服镇吐药
D.绝对卧床休息
E.鼓励孕妇少量、多次进食
[单项选择]某会计人员记账时,将应计入“库存商品——甲商品”科目借方的8 000元误计入贷方。会计人员在查找该项错账时,在下列方法中,应采用的方法是( )。
A. 除2法
B. 除9法
C. 差数法
D. 尾数法
[多选题]以下关于国家电网有限公司明确“十四五”发展思路表述正确的是()。
A.以安全稳定为基础
B.更加聚焦新兴产业
C.更加注重制度完善
D.以公司战略为统领
[单项选择]《融资性担保公司管理暂行办法》所称融资性担保公司是指依法设立,经营融资性担保业务的有限责任公司和()。
A. 个人和组织
B. 法人单位
C. 经济实体
D. 股份有限公司
[判断题]车挡表示器设置在线路终端的车挡上,昼间一个红色方牌;夜间显示一个红色灯光。
A.正确
B.错误
[单选题]立、撤杆塔时,禁止基坑内有人。除指挥人及指定人员外,其他人员应在杆塔高度的()倍距离以外。
A.1.1
B.1.2
C.1.3
D.1.4
[多项选择]散发较空气重的可燃气体、蒸气的甲类生产厂房及有粉尘、纤维爆炸危险的乙类生产厂房,应采取()措施。
A. 应采用不发火花的地面
B. 当地面采用绝缘材料作整体面层时,应采取防静电措施
C. 厂房的下部宜有向外排气口或排气装置
D. 地面下不宜设置地沟
E. 宜采用全部或局部轻质屋面板作为泄压设施
[多项选择]2005年以全民公决投票否决了《欧盟宪法条约》的国家是
A. 法国
B. 英国
C. 荷兰
D. 西班牙
[单项选择]From the sentence "This brought home the lesson that in a world in which total war had become too horrific to contemplate even a limited war was no small matter and would demand considerable commitment.", we know that_____.


A. the world has realized that a limited war was a piece of cake and demanded no matter.
B. the people urged to launch a limited war.
C. the world has realized that even a limited war was still terrible and needed to do a lot of things to finish it.
D. people were afraid to begin a limited war so the have done a lot of things to prevent it.
[多选题]下列( )场所不应设置在地下或半地下。
A. 甲类生产厂房
B. 乙类生产厂房
C. 丙类生产厂房
D. 老年人建筑
E. 儿童活动场所
[判断题]电气化铁轨附近是产出杂散电流较多的地区,如电缆必须穿过铁轨时,应在电缆外面加装绝缘遮蔽管。
[多项选择]常规的岩石剪切试验中,施加剪切载荷的方法有()
A. 快速剪切法
B. 时间控制法
C. 变形控制法
D. 应力控制法
E. 慢速剪切法
[多选题]关于行政处罚, 下列说法正确的是
( )
A.行政机关对当事人进行处罚不使用罚款单据的,当事人有权拒绝处罚
B.行政机关对当事人进行处罚使用非法定部门制发的罚款单据的,当事人有权拒绝处罚
C.行政机关在处罚决定作出前拒绝听取当事人的陈述、申辩,行政处罚决定不能成立
D.没有法定依据或者不遵守法定程序的, 行政处罚无效
[单项选择]( )是指同类已到履行期限的对等债务,因当事人相互抵充其债务而同时消灭。
A. 消灭
B. 抵消
C. 混同
D. 解除
[单选题]某国家级大学科技园,2019年为孵化对象提供下列服务,不属于享受免征增值税的是( )
A.研发和技术服务
B.转让不动产服务
C.经营租赁
D.鉴证咨询服务
[判断题]工务段应对轨检车查出的Ⅲ级超限处所及时处理,对查出的Ⅳ级超限处所立即限制行车速度并及时处理。
A.正确
B.错误
[单项选择]有源网络的等效有源支路与该网络本身等价的前提条件是()
A. 在分析内部问题时
B. 在分析外部问题时
C. 无论内外部问题都成立
D. 该网络为单一电源网络
[多项选择]常用的光分路器可以分出的光路有()
A. 1:21:41:8
[判断题]道岔作业结束前,禁止提前合上安全遮断器。在驼峰快速动作道岔上作业时须放置安全木楔。
A.正确
B.错误
[判断题]通过信号机以显示停车信号为定位。( )
A.正确
B.错误
[单项选择]《危规》规定铁路罐车不可以运输的品类是()。
A. 原油
B. 航空煤油
C. 乙醇
D. 石脑油
[单项选择]
What Is a Market

In the simplest terms, a market is the place where seller meets buyer to exchange products for money. Traditional markets still (19) in many parts of the world. Even in the United States, during summer months, there are farmers’ markets where direct selling and buying take (20) between producers and consumers. Most service industries still (21) at this market level.
Manufacturing industries and most agricultural enterprises are more (22) from the consumers. Their products (23) several hand-truckers, warehouse workers, wholesalers, and retailers before reaching the final consumers.
Products or commodities are usually divided into two types: consumer and industrial. Consumer goods are those (24) are sold to final users, the customers. These goods include food, clothing, automobiles, television sets, appliances, and all those things people go to stores
A. operate
B. perform
C. serve
D. function

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