初中數(shù)學(xué)經(jīng)典易錯題集錦及答案

1、regulations and other requirements of a relevant State laws, statutes, ordinances and norms; B of Luoyang City, Henan province, local regulations and departments under the State Council regulations, procedures; national,

2、 industry, standardization of Luoyang City, Henan province, about security management laws, regulations, procedures, rules, standards and other requirements; C national, trade and local standards; D notification of autho

3、rities, law enforcement agencies, bulletins, and other requirements; E National Convention. 2, access to a superior communications, zhuanwen; B-published newspapers, magazines; C conference access; D from laws, regulatio

4、ns, standards and other requirements distribution obtained; E by government agencies, industry associations and other access; F search the Internet; G other channels. 3, recognition and identification 3.1 health and tech

5、nology according to the standardization of safety management system requirements and related departments and units to collect information and preparation of GM of the applicable laws, regulations ... 3, about the safety

6、of jurisdictions, report regularly to the leading group for safety production. 4, promptly report accidents, and collaborative leadership group company safety production accidents, maintenance of the scene of the acciden

7、t, and timely rescue of casualties to stop development. Four, duty firefighter responsibilities 1, accept the security of working arrangements, is in charge of work safety in each specific region. 2, organized by the sec

8、urity officer for conducting regular fire drills to ensure that basic firefighting skills. 3, make regular checks on production safety organized by the safety officer, found safety hazards immediately halted and proper p

9、recautionary measures, reported to the safety officer. 4 assist the security officer is responsible for the work at the scene of the accident. Five, employee safety responsibilities 1 knowledge of production safety, and

10、actively participate in the Organization of learning activities to enhance security awareness and consciousness. 2, strictly in accordance with the rules work, observe labour discipline and the rules and regulations of t

11、he company. 3, the correct use of PPE. 4, company officials in a timely manner to reflect problems in safety. Fourth chapter security meeting company set up a sound system of safety meetings, monthly summary all

12、departments require a safety, regular analysis of the situation of production safety measures on major safety issues, and implementation. Safety training for the fifth chapter 1, all employees must receive safety traini

13、ng and education. 2, the company must be made before the new staff workshop, safety education. Employees changing jobs within the company or who leave for more than six months back to work, shop or safety education shou

14、ld accordingly. 3, for all employees of the company must conduct safety training and education, should be according to safety regulations, safety rules, discipline as an important part of safety education. 4,the compan

15、y's special operations personnel (including electrician, driving motor vehicles in factories, machine operators, and so on) must receive relevant professional training in safety knowledge, ensure qualified before the

16、y can schedule posts. Sixth chapter safety checks, companies must establish and improve the system of safety checks. Workshop safety checks once a month, team leader safety checks once a week. Second, companies should o

17、rganize production status checks, routine security checks, professional safety check. Specific requirements are: (I), post security, mainly by the staff before the operation, about your job or the work to be undertaken,

18、and after confirming the safe and reliable operation. Contents include: 1, if the security status of the equipment in good condition, safety protection device is effective; 2, provided security measures are implemented;

19、 3, the equipment used, whether the tools in accordance with safety regulations; 4, job sites, as well as goods piled up compliance with the safety specifications; 5, personal protective equipment, appliances, complete

20、 and reliable; 6, operation, procedures are clear. (B) routine safety inspections, mainly by the heads of the various departments responsible for, it must further site visits and inspections .. .1, employee injuries tha

21、t occur in the process of work, must be strictly in accordance with the regulations of the company reporting, investigation, analysis, treatment and management. 2, after a fatal accidents of workers, company officials sh

22、ould immediately organize to save the victims, take effective measures to prevent the expansion and protection of the scene of the accident, rehabilitation efforts and report group. Tenth chapter by-law

23、s of the system come into force on the date of promulgation. Six, a security safeguard system and objective: costs for necessary in order to ensure the safety of production, ensure enterprise security investment funds an

24、d improved working conditions, according to the extraction of determines the criteria yourself, and have the courage to produce shall not be diverted to any other use. Second, scope this policy applies to the funds of in

25、put in production safety management. Three, responsibilities 1, Chairman of the Board is responsible for determining safety extraction of investment criteria and the funding necessary to ensure the safety of production.

26、2, carbon susheng technology is responsible for the development of the system of safety investment to protect, supervise and inspect the use of investment funds to security. 3, finance charge based on the safety investm

27、ent protection system, establishing the security expense account records the cost of extraction and the use of security costs. Four, according to the financial management of the high-risk industry enterprise safety in pr

28、oduction costs of the interim measures (financial enterprises, No. 478) requirements, combined with the actual situation in enterprise security costs that year extraction is based on actual sales of the year for accrual

29、basis, using excess regressive manner, according to extracts to cut 2. 1, annual sales income in part up to 10 million Yuan, according to the extract to cut 4. 2, annual sales income in the 10 million Yuan to 100 million

30、 Yuan (included) parts, extract to cut by 2. 3, the annual sales income of RMB 100 million to 1 billion yuan (included) parts, extract 0.5 per cent respectively. 4, part of the annual sales income of more than 1 billion

31、yuan, according to the extract to cut 0.2. 5, and developed contains following aspects of safety costs of using plans, and implementation: ⑴, and perfect, and transformation and maintenance security protection equipment

32、facilities spending, which: security初中數(shù)學(xué)經(jīng)典易錯題集錦及答案 初中數(shù)學(xué)經(jīng)典易錯題集錦及答案一、選擇題 一、選擇題1、A、B 是數(shù)軸上原點兩旁的點，則它們表示的兩個有理數(shù)是 -----------------------------（ ）A、互為相反數(shù) B、絕對值相等 C、是符號不同的數(shù) D、都是負(fù)數(shù)2、有理數(shù) a、b 在數(shù)軸上的位置如圖所示，則化簡|a

33、-b|-|a+b|的結(jié)果是--------------------（ ）A、2a B、2b C、2a-2b D、2a+b3、輪船順流航行時 m 千米/小時，逆流航行時(m-6)千米/小時，則水流速度-----------------（ ）A、2 千米/小時 B、3 千米/小時 C、6 千米/小時 D、不能確定4、方程 2x+3y=20 的正整數(shù)解有---

34、------------------------------------------------------（ ）A、1 個 B、3 個 C、4 個 D、無數(shù)個5、下列說法錯誤的是-------------------------------------------------------------------（ ）A. 兩點確定一條直線 B、線段是直線的一部分C

35、、一條直線是一個平角 D、把線段向兩邊延長即是直線6.函數(shù) y=(m2-1)x2-(3m-1)x+2 的圖象與 x 軸的交點情況是---------------------------------- ( ) A.當(dāng) m≠3 時，有一個交點 B、 時，有兩個交 1 ? ? mC、當(dāng) 時，有一個交點 D、不論 m 為何值，均無交點 1 ? ? m7.如果兩圓的半徑分別為 R 和 r

36、（R>r） ，圓心距為 d，且(d-r)2=R2，則兩圓的位置關(guān)系是---------（ ）A、內(nèi)切 B、外切 C、內(nèi)切或外切D、不能確定8、在數(shù)軸上表示有理數(shù) a、b、c 的小點分別是 A、B、C 且 bCD C、AE>CD D、無法確定37、順次連結(jié)四邊形各邊中點得到一個菱形，則原四邊形必是------------------（ ）A、矩形 B、梯形 C、兩條對角

37、線互相垂直的四邊形 D、兩條對角線相等的四邊形38、在圓 O 中，弧 AB=2CD，那么弦 AB 和弦 CD 的關(guān)系是----------------------------------------- （ ）A、AB=2CD B、AB>2CD C、AB6 D、a、b、c 中有一個等于 641、如圖，在△ABC 中，∠ACB=Rt∠，AC=1，BC=2，則下列說法正確的是------（

38、 ）A、∠B=300 B、斜邊上的中線長為 1C、斜邊上的高線長為D、該三角形外接圓的半徑為 1 5 5242、如圖，把直角三角形紙片沿過頂點 B 的直線 BE（BE 交 CA 于 E）折疊，直角頂點 C 落在斜邊 AB 上，如果折疊后得到等腰三角形 EBA，那么下列結(jié)論中（1）∠A=300 （2）點 C 與AB 的中點重合 （3）點 E 到 AB 的距離等于 CE 的長，正確的個數(shù)是------

39、---------------------------------------------（ ） A、0 B、1 C、2 D、343、不等式 的解是----------------------------------------------------（ ） 6 3 2 2 ? ? ? x xA、x>B、x>-C、x0)和 y= (k≠0)，在同一坐標(biāo)系中的圖象可能是---