[判断题] ( )使用气焊. 气割动火作业时,乙炔瓶应当直立放置,氧气瓶与之间距不应当小于5米,二者与作业地点间距不应当小于10米,并应当设置防晒和防倾倒设施。
A.正确
B.错误
[填空题]
On December 25, 2000, many people across North America
received a rare Christmas treat when the moon passed in front of the sun
resulting in a partial solar eclipse.
Solar eclipses occur when
the moon {{U}} (47) {{/U}}between the earth and the sun, and the moon’s
shadow covers part of the earth; and a total solar eclipse takes place when the
moon’s shadow blocks out the sun {{U}} (48) {{/U}}. What made this
particular solar eclipse unique was that this event has occurred on December
twenty-fifth only 30 times{{U}} (49) {{/U}}the past 5000 years, the last
time in 1954.
But people must be exceptionally {{U}} (50)
{{/U}}when attempting to view a solar eclipse. Without taking precautionary
{{U}} (51) {{/U}}, one can permanently damage the retina of the eye;
however, there are several safe methods of {{U}} (52) {{/U}} this
heavenly marvel.
First, you can view a solar eclipse by using
eclipse safety glasses for filtering out th
[单项选择]我国刑法规定:中华人民共和国国家工作人员和军人在中华人民共和国领域外犯本法规定之罪的,适用本法。这一规定是我国刑法在空间适用效力问题上采取的( )。
A. 保护管辖原则
B. 普遍管辖原则
C. 属地管辖原则
D. 属人管辖原则
[单选题]与电力系统并列运行的0.9MW容量发电机,应该在发电机( )保护
A.机端装设电流速断
B.中性点装设电流速断
C.装设纵联差动
[单项选择]James Cleveland Owens was the son of a farmer and the grandson of black slaves. His family moved to Cleveland when he was 9. There, a school teacher asked the youth his name. "J.C.," he replied. She thought he had said "Jesse", and he had a new name.
Owens ran his first race at age 13. After high school, he went to Ohio StateUniversity. He had to work part-time so as to pay for his education. As a second year student, in the Big Ten games in 1935, he set even more records than he would in the Olympic Games a year later.
A week before the Big Ten meet, Owens accidentally fell down a flight of stairs. His back hurt so much that he could not exercise all week, and he had to be helped in and out of the car that drove him to the meet. He refused to listen to the suggestions that he give up and said he would try, event by event. He did try, and the results are in the record book.
The stage was set for Owens victory at the Olympic Games in Berlin the next year, and his success
A. hurt himself in the back
B. succeeded in setting many records
C. tried every sports event but failed
D. had to give up some events
[单选题]因工作需要使用公司章,由相关职能部门填写用印审批单,报()审批同意用印。
A. 公司领导
B. 职能部门负责人
C. 专业负责人
[判断题]气浮池进水自流进入调节水箱,调节水箱主要作用是调节水量,均匀供水给后续的加压泵。设备主体采用A3钢结构,设备本体及设备连接管道均用三道红丹、两道氯磺化面漆进行防腐。
A.正确
B.错误
[单项选择]关于稽留流产哪项错误()。
A. 对稽留流产处理前,应检查凝血功能
B. 若凝血功能正常、子宫小于12周,立即行刮宫术
C. 即使凝血功能正常,也应口服己烯雌酚5日后,再行刮宫或引产
D. 若凝血功能障碍,应积极纠正后,再行处理
E. 处理前应做好输血准备,术中应给予宫缩剂
[单项选择]凯恩斯认为,债券的市场价格与市场利率成( )。
A. 无关
B. 反比
C. 正比
D. 相关
[论述题]4.简述焦磷酸质量法测定粉尘中二氧化硅的原理及注意事项。
[单选题]夜间混凝土工程施工时应有足够的照明,在深坑和潮湿地点施工应使用( )安全照明。
A.高压
B.交流
C.直流
D.低压
[多选题]关于母线充电保护特点,正确的是()。
A.为可靠切除被充电母线上的故障,专门设立母线充电保护
B.为确保母线充电保护的可靠动作,尽量采用阻抗保护作为相间故障的保护
C.母线充电保护仅在母线充电时投入,其余情况下应退出
D.母线充电保护不能是方向保护
[判断题]服务人员宜使用十字文明用语:'您好、请、谢谢、对不起、再见'。
A.正确
B.错误
[单选题]井下临时停工的地点,( )停风。
A. 可暂时
B. 可根据瓦斯浓度大小确定是否
C. 不得
[多项选择]一国的进口贸易额会受许多因素的影响,如果其他条件不变,这些因素与进口贸易额的一般关系是( )。
A. 国内的总产出水平与进口贸易额正相关
B. 国内的总产出水平与进口贸易额负相关
C. 如果本币升值,会导致进口贸易额的增长
D. 如果本币升值,会导致进口贸易额的减少
E. 如果国内经济处于景气上升期,进口贸易额会相应增加
[判断题]电压表的内阻越小越好。( )
A.正确
B.错误
[多选题]陈某因违反治安管理被某县公安局处以罚款500元,陈某一直未缴纳罚款,公安机关可以采取的措施是( )。
A. 陈某因家庭经济困难,经县公安局批准,可以暂缓缴纳或者分期缴纳罚款
B. 县公安局可以对陈某加处罚款,但加处罚款金额不得超过500元
C. 县公安局可以对陈某决定拘留10日
D. 经催告后,陈某仍不缴纳罚款,县公安局可以申请人民法院强制执行
[单选题]各部室根据自身特点制定灭火疏散处置办法,并定期组织演练;其中车站以及控制中心至少()进行一次消防演练。
A.每季度
B.每月
C.每半年
D.每年
[多选题]涉及易燃易爆、有毒有害气体的场所除了配备基本安全设施外,还应当装设气体泄漏监测报警装置、配备至少2套以上全封闭防化服、构成重大危险源的,应当设立气体防护站(组)
A.装设气体泄漏监测报警装置
B.配备至少2套以上全封闭防化服
C.构成重大危险源的,应当设立气体防护站(组)
D.配备专用消防车
E.配备专用消防队
[单项选择]肛管括约功能的完成主要靠()
A. 腰大肌
B. 腹直肌
C. 臀大肌
D. 肛管直肠环
E. 外括约肌的皮下部
[判断题]通常合成膜的生物相容性优于纤维素膜。( )
A.正确
B.错误
[单项选择]Speaker A: Are you going to your family reunion this Christmas holidaySpeaker B: ______
[简答题]请简述中国人民解放军在新时代的使命任务。
[单选题]______是无人机完成起飞空中飞行执行任务返场回收等整个飞行过程的核心系统,对无人机实现
全权控制与管理,因此该子系统之于无人机相当于驾驶员之于有人机,是无人机执行任务的关键。
A.飞控计算机
B.飞控子系统
C.导航子系统