阅读理解。
GET YOUR DEGREE AT HOME!
Have you ever wondered what a Degree might be worth to you I your job or car
eer? It means a
lot Americans with an Associate Degree average nearly $ 10,000 more in yearly earnings than those
with just a High School Diploma．
Harcourt Learning Direct offers you a way to get a Specialized Associate Degree in 11 of today's
growing fields-without having to go to college full time．
With Harcourt, you study at home, in your
spare time-so you don't have to give up your present job while you train for a better one．Choose
from exciting majors like Business Management, Accounting, Dressmaking ＆ Design, Bookkeeping,
Photography, Computer Science, Engineering, and more!
Your training includes everything you need!
Books, lessons, learning aids-even professional-quality tools and equipment-everything you need
to master your training and move ahead to a new career is included in the low tuition(学费)
Price you pay．
Your education is nationally recognized!
Nearly 2,000 American companies-including General Electric, IBM, Mobil．General Motors,
Ford, and many others-have used our training for their employees．If companies like these recognize
the value of our training, you can be sure that employers in your area will, too!
Earn your degree in as little as two years! Get a career diploma in just six months!
The career of your dreams is closer than you think! Even if you have no experience before, you
can get valuable job skills in today's hottest fields! Step-by-step lessons make learning easy．Prepare
for promotions, pay raises, even start a business of your own!
Send today for FREE information about Harcourt at-home training!
Simply-fill in your name and address on the coupon(登记表)above．Then, write in the name and
number of the one program you're most interested in, and mail it today．We'll rush you free information
about how you can take advantage of the opportunities in the field you've chosen. Act today!
Mail coupon today!
or call the number below
1-800-372-1589 Call anytime, 24 hours a day, 7 days a week.
www. harcourt-learning.com
E-mail: harcourt@learning.com
1．What kind of people will probably answer this advertisement?
A．College students preparing to work in some big companies.
B．College students preparing to study for a degree.
C．High school graduates preparing to have at home training.
D．High school graduates preparing for college entrance examinations.
3．People can get a specialized Associate Degree by_________.
A．doing full-time learning at school
B．working in some big famous companies
C．studying in their spare time
D．studying abroad for two years
4．Harcourt training has NOT been used by ____________for its employees.
A．General Motors
B．Harvard University
C．General Electric
D．Mobil
5．How can you contact Harcourt Learning Direct?
A．By sending an E-mail.
B．By visiting the office on weekdays.
C．By making a call on weekdays only.
D．By sending a letter not later than today.
、电量大小为q的带负电的粒子，粒子速度的大小恒定，沿纸面指向各个方向，不计粒子重力。其中垂直于ab边入射的粒子恰能从ad边中点N射出磁场。求：
…①
…②
…③ 所以：
…④
…⑤ 得：x1=
…⑥
…⑦ 得：x2=L…⑧
…⑨ 
=
…⑩