在传染病的预防工作中，国家实行的制度是（）。 A.预防保健制度_爱下问搜题

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问题单项选择题

在传染病的预防工作中，国家实行的制度是（）。

A.预防保健制度

B.有计划的预防接种制度

C.爱国卫生运动

D.有计划的卫生防疫

E.以上都不是

答案

参考答案：B

阅读理解

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
of at least 60 wpm.
     he ability to take shorthand dictation (速
记) is required.
     The basic salary for the position is
$ 18,500 per year.

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

1. What do these four advertisements have in common?

A. Their companies are introduced in detail.
B. They all want people in the proper position.
C. Each of them is commented by their manager.
D. They are located in the south of the same city.

2. The most attractive wage of all the above is _____.

A. City College Union Inc Secretary/Typist
B. Sewing Machinist
C. Word Processor Operator
D. Emu Airline Secretary

3. If you want to be a sewing machine operator, you may contact this company by _____.

A. phone
B. email
C. visit
D. fax

问答题

用什么办法克服平面连杆机构的死点位置试举两例说明