问题 问答题 简答题

实验室最常用的五种菌种保藏方法是什么?试说明细菌、酵母菌、放线菌保藏的一种适宜方法。

答案

参考答案:冰箱保藏法(细菌,酵母菌菌)、石蜡油封保藏法、甘油悬液保藏法、砂土保藏法(放线茵)、冷冻干燥保藏法。

选择题
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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