[多选题]共用题干 A Country's Standard of LivingThe"standard of living"of any country means the average person's ...

[单选题]A number of theories have been proposed to explain the situation.

[多选题]共用题干 Operatunity1 Operatunity is a TV talent show for amateur opera singers.The winners get the chan...

[多选题]共用题干 第三篇The State of Marriage TodayIs there something seriously wrong with marriage today?During the...

[多选题]共用题干 Why People Use Pseudonyms（假名字）?You can't choose the name you are given at birth,but in many cou...

[单选题]Did she accept his research proposal?

[多选题]共用题干 Who Built Giza ' s Pyramids（金字塔）?1 For centuries,the pyramids of Giza have been timeless symbol...

[多选题]共用题干 第三篇The Changing Middle ClassThe United States perceives itself to be a middle一class nation.Howe...

[多选题]共用题干 Traffic in Our CitiesThe volume of traffic in many cities in the world today continues to expan...

[单选题]"There is no other choice,"she said in a harsh voice.

[多选题]共用题干 Pedestrians Only1 The concept of traffic-free shopping areas goes back a long time.During the M...

[多选题]共用题干 第三篇Operation MigrationIf you look up at the sky in the early fall in the northern part of North...

[多选题]共用题干 Global WarmingFew people now question the reality of global warming and its effects on the worl...

[单选题]Lack of space forbids further treatment of the topic here.

[多选题]共用题干 Body Language in the United States1.Most people shake hands and make eye contact when they meet...

[多选题]共用题干 第三篇AlaskaIn 1959 Americans welcomed Alaska into the Union as the 49th state,symbolizing a chang...

[多选题]共用题干 What We Take From and Give to the SeaAs long as we have been on earth,we have used the sea arou...

[多选题]共用题干 A Country's Standard of LivingThe"standard of living"of any country means the average person's ...

[单选题]They converte the spare bedroom into an office.

[多选题]共用题干 Operatunity1 Operatunity is a TV talent show for amateur opera singers.The winners get the chan...