问题 填空题

A.条件(1)充分,但条件(2)不充分.

B.条件(2)充分,但条件(1)不充分.

C.条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.

D.条件(1)充分,条件(2)也充分.

E.条件(1)和(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.

(1)a>0,b<0; (2)a<0,B>0。

答案

参考答案:B

解析:

[提示] [*]从而条件(2)充分,条件(1)不充分.故选(B).

阅读理解

阅读下面短文,完成问题。

     I'm Rosa Croft.I must say that I became a nurse by chance.I didn't really like my first Job-office

work. It was OK, but that's all I can say about it.I stayed in the same place with the same people

around me all day and every day. Then I became a singer and I enjoyed it very much.but later the

singing group broke up(解散)and I had to start looking for a new job.

     Some girls wanted to be nurses when they were children.but it never went into my head until I

saw an ad in a newspaper.I thought,"oh,well,I'll give it a try."One thing I liked about it was going

away from home.

     The training was very interesting and most of it was just in the wards(病房),so that I could begin

nursing real patients soon.

     I lived in the nurses home after I arrived and I had my own room.It was very nice.I tike nursing

more than I ever thought I would.I think I'll always work oil nursing in the future. Wherever I live,

there's sure to be a hospital and there's always a job for a nurse.

1. What was Rosa's first job?

    _________________________________________________

2. Why didn't Rosa like her first job?

    _________________________________________________

3. Why didn't Rosa go on with her second job?

    _________________________________________________

4. How did Rosa find the job as a nurse?

    _________________________________________________

5. Did Rosa love the job as a nurse?

    _________________________________________________

问答题 简答题