已知抛物线的方程为标准方程，焦点在x轴上，其上一点P(-3,m)到焦点距离为5，

如图所示，将△ABC水平向右平移到△DEF，若A，D间的距离为1，CE=2，则BF= 

A.3 

B.4

C.5

D.不能确定

Many job opportunities are offered to those who wish to work. It helps if you know more than one language. There are good jobs for interpreters and typists who know English and another language.

There are many good jobs in government. In most cases, you must be a citizen of this country, and you must take a civil service examination. These examinations are open to everyone, regardless of race, religion, or color.

For many civil service jobs you need a high school diploma. The person who does not have a high school diploma can get one. There are several ways. You can study high school subjects at home and then take special tests. If you pass the tests, then you get a diploma. Or you can go to night school. There are classes that prepare you to take special tests to earn a diploma.

You can attend a night school that grants a high school diploma if you complete certain courses. If you do this, you do not have to take the special tests. Be as well trained as you can. Get as much training as you can. Opportunity knocks at every door. Be sure that when it knocks at your door you are ready.

小题1:From the passage, we know that an interpreter’s job must have something to do with_________.

A．money

B．languages

C．opportunities

D．diploma小题2:In order to get a government job, you must take a certain__________.

A．course

B．trip

C．test

D．service小题3:The passage suggests that _________.

A．any citizen can try to get a government job

B．civil service jobs are offered only to foreigners

C．training programs are often poorly organized

D．anyone who wishes to work can get a good job小题4:We can see that          .

A．one can work on a high school diploma at home

B．typists who know English get a good pay

C．well-trained people are often out of work

D．job opportunities will help you to know more than one language小题5:Which of the following is not true? If you want to get a high school diploma, you need        .

A．to study at home and pass special tests

B．to go to night school to prepare you to pass special tests

C．to attend a night school and complete certain courses

D．to get as much training as you can and be always ready

下列叙述哪项是医学术语（）

A.心跳

B.心悸

C.饱肚

D.拉肚子

E.喘气不止

汽水分层

在保证合同中，什么情况下保证人不承担民事责任？