题干

用显微镜观察临时装片时,发现视野中有一污点,这个污点不可能存在于(  )

A:目镜上

B:物镜上

C:载玻片上

D:反光镜上

上一题 下一题 0.0难度 选择题 更新时间:2018-06-13 06:42:43

答案(点此获取答案解析)

D

同类题5

阅读理解

    City College Union Inc

    Secretary/Typist

The Union is a student-run organization with a permanent staff of 20. Typing speed: at least 60 wpm.

    The ability to take shorthand dictation and a working knowledge of filling procedures are essential requirements.

    The basic salary for the position is $ 18,500 per year.

    Enquires to R. Barbar 387-5075.

    Emu Airline

    Secretary

    Emu Airline is now offering a part-time position for a secretary.

    The position offers at least 20 hours' work a week, with a view to full-time work in the future.

    Monthly salary is about $ 1,400.

    Phone 899-3264 for an appointment.

    Word Processor

    Operator (full-time)

    We need an operator to work in an office associated with the building industry. Only experiencedoperators are expected to apply.

Starting salary: $ 17,950 yearly.

    Apply in writing to:

    The Personnel Officer Hill Morgan Pty Ltd 38 Green Hill Rd. Kensington 2033.

    Sewing Machinist Wanted

    Jeans Industry

    We are an expanding clothing company located south of the city. Our products include jeans, skirts, shorts and so on. We are looking for sewing machine operators

    The factory works a 38-hour week over 4-5 days. Wages for this are $ 18,050 per year. Wages and conditions are in line with the current industrial award.

    If you are interested, come over and pick up an application form from Ripper Jeans, 23 North Ave, Beaudesert.