问题 单项选择题

Although part of the ivory available on world markets was taken from wild elephants that were killed illegally, some ivory is derived from sources that nearly all nations define as legal, such as elephants that have died natural deaths. The world’s few remaining wild elephant herds, therefore, are not endangered when those buying ivory at wholesale make a serious effort to limit their purchases to such legal ivory. The argument above depends on the assumption that

A.wholesale buyers attempting to limit their purchases to legal ivory can reliably distinguish legal from illegal ivory.

B.the demand for products made from legal ivory will continue to grow in the near future.

C.there are currently fewer wholesale sources of legal ivory in the world than there are of illegal ivory.

D.wholesale buyers of ivory products are generally unaware of the reasons for the dwindling world supply of ivory.

E.(E) a continued supply of legal ivory is ensured because elephants reproduce in captivity.

答案

参考答案:A

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Thursday, January 3
Book a Librarian One-on-One Computer or Internet Training Session
Location:Main Library Training Center(5th F1.)
Address:100 Larkin St.(at Grove)
Library Sponsored Public Program
Event Time:4 p.m.-6 p.m.
Description:
Do you need personalized help Using a computer or the Internet?
During the month of January,the library is offering limited one-on-one training sessions(培训课程).Sessions are limited to 30 minutes and require signing up in advance.Call(415)557-4400 to book an appointment or for more information.
Friday, January 4
Beyond Journal Writing for Teens
Location:Main Library Paley Rm.(3rd F1.)
Address:100 Larkin St.(at Grove)
Library Sponsored Public Program
Event Time:4 p.m.--- 5:30 p.m.
Description:
In this nine-week(January 4 through February 29)class,you will have the opportunity to develop and share your writing (poetry, biography and more) in a supportive group led by a Writers Corps teacher.Open to teen writers aged 13-19.
For information,communicate with Betsy Levine,Teen Librarian,at
(415)557-4497 or Dmail blevine@sipI.org.
Tuesday, January 8
Power Panels and Films by World Savvy
Location:Main Librarv Koret Auditorium
Address:100 Larkin St.(at Grove)
Library Sponsored Public Program
Event Time:5 p.m.-8 p.m.
Description:
World Savvy,The Global Film Initiative team up to take you on a world tour through explorations of art,media and film.Come and share how film and media affect youth,education and our global community at large.To book a position,communicate with Jennifer Collins at(415)557—4268 or jennifercollins@sfpl.org.
Wednesday, January 9
Business Counseling Sessions
Location:Main Library(Fourth Floor Business Center)
Address:100 Larkin St.(at Grove)
Library Sponsored Public Program
Event Time:10 a.m.-3 p.m.
Description:
SCORE—Service Corps of Retired Executives(行政人员)offers free,one-hour business counseling(咨询)sessions from 10 a.m.to 3 p.m.
To schedule an appointment with a SCORE counselor, call(415)744-6827.Cosponsored by the Business,Science and Technology
Center.
小题1:.If a boy wants to improve the skill of writing poems he can call           .
A.(415) 744-6827B.(415)557-4268
C.(415) 557-4497D.(415)557-4400
小题2:Who would be most likely to attend the event on Wednesday, January 9?
A.A science teacherB.A retired worker.
C.A school headmaster.D.A supermarket owner.
小题3:Which event doesn’t need booking in advance?
A.One-on-One Computer or Internet Training Session.
B.Beyond Journal Writing for Teens.
C.Power Panels and Films by World Savvy.
D.Business Counseling Sessions.
单项选择题 A1/A2型题