设a＝log36，b＝log510，c＝log714，则a，b，c的大小关系为_

其诊断考虑为

A．腰椎间盘突出

B．腰背部软组织劳损

C．腰椎管狭窄症

D．腰椎滑脱症

E．腰椎管肿瘤

患者，女，45岁，和缺失，口腔检查可见，间食物嵌塞，缺失牙区牙槽嵴丰满，余牙正常。某医师设计作基牙，三臂卡，间隙卡环。

为了增加义齿的固位和稳定，根据患者的口腔情况，需增加的卡环是（）

A.右侧下颌尖牙卡环

B.左侧下颌尖牙卡环

C.左侧下颌第二前磨牙隙卡

D.左侧下颌第二磨牙圈形卡环

E.左侧下颌第一、二磨牙联合卡环

WE NEED OFFICE CLEANERS!

Three people are required for professional cleaning in the CBD area. Working hours from 5:00 pm on Mondays, Wednesdays & Fridays. About five hours per shift (轮班). A good record is necessary. Experience preferred. Phone 6345-7843 now.

INTERESTED IN CHILDCARE?

Qualified person or preschool teacher needed for busy childcare centre, south of the river. Full-time work guaranteed. Immediate start necessary. The candidate must be able to work as a cooperative team member. Phone 6345-2345 for an interview and fax resume to 6345-2345.

WANT TO WORK AS A DENTAL NURSE?

This is an exciting opportunity for a qualified dental nurse with a confident and cheerful personality to work in the School Dental Health Schemas. You must be able to get along well with children because the work involves talking to groups about dental health practices. For further information, visit our website: schooldentalservices@gov.sg. And fax your resume to 6234-4567.

FLORIST WANTED!

Are you a creative and trained florist(花匠) with at least two years of experience? Then this may be just what you are seeking. The city’s leading Florist Artist Studio needs another part-time member on their wedding team. Please phone 6098-7888 now!

40. You may most probably find the above advertisements ________.

A. in a store window       B. in a school magazine

C. in a newspaper         D. on a company notice-board

41. The position of a(n)_______is a part-time job.

A. florist  B. artist  C. preschool teacher   D. dental nurse

42. Which of the following is the most important for the childcare job?

A. Cooking skills                    B. Childcare experience

C. The ability to start work in two weeks. D. The ability to work well with other members.

43. The office cleaners will be required to work about ______hours a week.

A. 5    B. 10    C. 15     D.20

请用不超过150字的篇幅，概括出给定资料所反映的主要问题。

高压断路器的主要结构一般大体可分为（），（），灭弧部分和（）。