单选题
261、当钢轨折损严重、断缝超过30mm或紧急处理后不能及时焊复时,应切除伤损部分,在两锯口间插入长度不短于()的同型钢轨,轨端钻孔,安装接头夹板,用10.9级螺栓拧紧,拧紧短轨前后各50m范围内的扣件,按不超过160km/h速度放行列车。
A
6m
B
12.5m
C
20m
D
25m
答案解析
正确答案:A
解析:
当钢轨折损严重、断缝超过30mm或紧急处理后不能及时焊复时,应切除伤损部分,在两锯口间插入长度不短于()的同型钢轨,轨端钻孔,安装接头夹板,用10.9级螺栓拧紧,拧紧短轨前后<|endoftext|>
The best way to learn a new language is to immerse yourself in it as much as possible. This means surrounding yourself with the language and using it in your everyday life. Here are some tips to help you learn a new language effectively:
Practice speaking: Speaking the language regularly is crucial for improving your fluency. Find a language partner or conversation group to practice with, or try speaking with native speakers if possible.
Listen and watch: Listen to podcasts, watch movies, TV shows, or YouTube videos in the language you're learning. This will help you improve your listening skills and get used to the sounds and rhythm of the language.
Use language learning apps: There are many apps available that can help you learn a new language. Duolingo, Babbel, and Rosetta Stone are some popular options. These apps often include interactive lessons and quizzes to help reinforce your learning.
Read in the language: Start with simple texts like children's books, comics, or beginner-level news articles. As you become more comfortable, challenge yourself with more complex materials.
Write in the language: Keeping a journal or writing short essays in the language you're learning can help you practice your writing skills and reinforce your vocabulary and grammar knowledge.
Take a class or hire a tutor: If you prefer a more structured approach, consider enrolling in a language class or hiring a tutor. A professional instructor can guide you through the learning process and provide personalized feedback.
Learn from mistakes: Don't be afraid to make mistakes. They are a natural part of the learning process and can help you improve. Use them as opportunities to learn and grow.
Set realistic goals: Set achievable goals for yourself, such as learning a certain number of new words each day or having a short conversation with a native speaker.
Be consistent: Consistency is key when learning a new language. Dedicate a specific amount of time each day to language learning to ensure steady progress.
Stay motivated: Find reasons to stay motivated, whether it's a trip to a country where the language is spoken, a personal challenge, or a desire to connect with new people. Remember that language learning is a journey, and every small step brings you closer to your goal.
相关题目
单选题
69、分动外锁闭道岔应按每副道岔配齐紧固、加锁装置。紧固装置包括密贴尖轨紧固器、斥离尖轨限位器、()紧固器。
单选题
68、非设备管理单位承担的施工或维修作业,施工或维修作业单位应与设备管理单位签订()。
单选题
67、防灾安全监控系统是()监测子系统、雨量监测子系统、异物侵限监控子系统、雪量监测子系统以及地震监测子系统的集成系统。
单选题
66、凡影响工务设备稳定、使用和行车安全的施工作业和维修作业,都必须纳入天窗,不得利用()进行。
单选题
65、发现牵引供电设备断线及其部件损坏,或发现牵引供电设备上挂有线头、绳索、塑料布或脱落搭接等异物,不得与之接触,应立即通知附近车站,在牵引供电设备检修人员到达未采取措施前,任何人员均应距已断线索或异物处所()以外。
单选题
64、发现钢轨折断时应立即封锁线路,并根据现场情况采取()、临时处理或永久处理。
单选题
63、对正线钢轨现场焊焊缝平直度,应使用钢轨平直度测量仪()至少检查1遍,对低塌达到轻伤的焊接接头,每季度至少检查1遍。
单选题
62、对综合检测列车检测出横向加速度、垂向加速度IV级偏差或横向加速度、垂向加速度同时达到Ⅲ级偏差,应立即()。
单选题
61、对道岔的结构及联结零件巡视()不少于一遍。
单选题
60、动检检测各级、各项偏差每千米总扣分在()分及以内的线路评定为优良。
