比较miRNA和siRNA的关系。-我要搜题网

[填空题] A fire is always exciting and dangerous. People crowd around to watch the smoke, the flames, and the fire fighters, who risk their lives to save others’’ lives. Fire fighters are in danger of burns and smoke injuries. (36) ________, they save thousands of lives and (37) ________ of dollars of property every year. Fighting fires is not just risky. It is also very (38)________. Fire fighters do their jobs in rain or shine, (39)________it’’s 100 F or 20 F below zero. At a fire, they carry heavy gear up and down stairs or ladders. They search for (40)________people. They hack holes in the roof to (41)________smoke and gas. They hold hoses on the fire. The hoses are heavy, and the water in them shoots out under great (42) ________ . In fact, it usually takes two fire fighters to hold one hose. Fire fighters also have many other duties. Sometimes they have to give first aid, and their (43)________must be kept in order. They must visit factories and public buildings to check f

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[填空题]四氯化碳工业卫生容许浓度为（）。

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[单选题]基层团委书记每年至少为团员青年进行（）次以党的思想理论和形势政策教育为主要内容的宣讲。
A.1
B.2
C.3
D.4

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[简答题]请演示振水音的检查方法。

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[判断题]消防员职务由高至低为:站长(中队长)助理、分队长、副分队长、班长、副班长、消防员。
A.正确
B.错误

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[单项选择]
Directions: This part is to test your reading ability. There are 5 tasks for you to fulfill. You should read the reading materials carefully and do the tasks as you are instructed.
1
Directions: After reading the following passage, you will find 5 questions or unfinished statements, numbered 36 to 40. For each question or statement there are 4 choices marked A), B), C) and D). You should make the correct choice and mark the corresponding letter on the Answer Sheet with a single line through the centre.

I grew up knowing that I was different, and I hated it. When I started school my classmates made it clear to me how I must look to others: a little girl with an ugly lip. And I was deaf in one ear. I was sure that no one outside my family could love me. Then I entered Mrs. Green’s se
A. The Pretty Teacher
B. A Disabled Girl
C. Why I Love Mrs. Green
D. A Whisper Test

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[单选题]《国家中长期教育改革和发展规划纲要》规定把(　　)作为教育工作的根本要求。人力资源是我国经济社会发展的第一资源，教育是开发人力资源的主要途径。要以学生为主体，以教师为主导，充分发挥学生的主动性，把促进学生健康成长作为学校一切工作的出发点和落脚点。关心每个学生，促进每个学生主动地、生动活泼地发展，尊重教育规律和学生身心发展规律，为每个学生提供适合的教育。努力培养造就数以亿计的高素质劳动者、数以千万计的专门人才和一大批拔尖创新人才。
A.教育优先发展
B.育人为本
C.改革创新
D.促进公平

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[判断题]贯通道侧护板是铝型材。
A.正确
B.错误

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[单选题]胸外心脏挤压时，（）用力垂直向下挤压。
A. 指尖
B. 掌心
C. 掌根

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[单选题]男,35岁,突然神志丧失,呼吸停止。即刻进行心肺复苏时胸外按压的部位是
A.胸骨角
B.心前区
C.胸骨下半部
D.胸骨左侧第四肋间
E.胸骨左侧第5肋间

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[单选题]与下属沟通时，命令的目的是（）
A.让部下自主地去执行
B.让部下照你的意图完成指定的行为或工作
C.与部下共同探讨状况、提出对策
D.让部下明白某件工作的重要性

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[单项选择]下面关于多媒体系统的描述中，（）是不正确的。
A. 多媒体系统是对文字、图形、声音、活动图像等信息及其资源进行管理的系统
B. 数据压缩是多媒体处理的关键技术
C. 多媒体系统也是一种多任务系统
D. 多媒体系统只能在微型计算机上运行

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[判断题]钢轨波浪磨耗（也称波磨）一般有三类：磨损性波磨、塑流性波磨和混合性波磨。
A.正确
B.错误

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[单选题]14.(91420)地层单位中，宇、界、系、统、阶、带等单位，主要是根据( )的发展演化阶段来划分的。(1.0分)
A.地层
B.动物
C.植物
D.生物

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[单选题](单选题,1 分)
下肢静脉曲张剥脱术后护理,正确的是
A.早期下床活动
B.卧床休息10天
C.患肢制动
D.1周后方可行走
E.只允许床上活动
教师批阅

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[简答题]沸腾床干燥器中的适宜气速应大于带出速度，小于临界速度。

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[单选题]高处作业安全检查评定要求,当建筑物高度超过( )m时,通道口防护顶棚应采用双层防护。
A.20
B.22
C.24
D.26

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[简答题]PLC防干扰措施有哪些？

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[多项选择]输液的种类包括
A. 渗透压输液
B. 营养输液
C. 胶体输液
D. 电解质输液
E. pH输液

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[填空题]问题解决的过程可分为四个阶段，即（）、理解问题、提出假设和检验假设。

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[简答题]比较miRNA和siRNA的关系。

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