______是最简单且最常用的一种数据结构。

Over 30,000 years ago, people from northern Asia went to America. Today we can tell these people Indians.

The Indians went to America because the weather began to change. Northern Asia became very cold. Everything froze. They had to move or they would die. How did the first Indians go to America? They walked!

Later Columbus found the New World in 1492. At first, only a few Europeans followed. They traveled to America in boats. For the next 300 years, about 500,000 people went there. Then the number grew very quickly. From 1815 to 1915, over 32,000,000 Europeans left their countries for the United States. The biggest groups went from Germany and Italy. These Europeans spoke many different languages. Most of them took almost no money. They went to America so they could find a better life.

小题1:________ went to America first.

A．People from northern Asia

B．People from Italy

C．People from Germany

D．Columbus小题2:Why did the Indians go to America? Because ____________ .

A． northern Asia became very hot

B． northern Asia became very cold

C．they were interested in America

D．they liked traveling小题3:The “New World” was _________.

A．Italy

B．northern Asia

C．Germany

D．America小题4:These Europeans ___________.

A．didn’t speak the same language

B．spoke English

C．spoke German only

D．spoke both English and German小题5:The Europeans went to America in order to _________ .

A．find the New world

B．find a better life

C．build more boats

D．learn English

根据中国银监会2012年颁布的《商业银行资本管理办法（试行）》，一级资本充足率的要求为（）。

A.4%

B.5%

C.6%

D.8%

《上海乡土志》中记载：“光绪年间的黄浦江畔，房屋多为西式，入夜则灯火辉煌，明如白昼。……邮局、洋行、海关、银行、电报局、丝厂、船坞、轮船公司皆在焉。……还有一些以营利为目的面包房、咖啡店出现，许多身着西装的中国人在此出人。”依据这些信息可以判断当时上海在社会生活方面出现了      

①西式建筑 ②近代邮电事业 ③外来宗教 ④西餐、西式服装

A．①②③

B．②③④

C．①③④

D．①②④

艾滋病病毒感染的年龄分布以哪个年龄段为主（）。

A.20岁以下

B.20～40岁

C.40～60岁

D.50岁以上

E.15～49岁

左、右心衰竭共同的X线表现是（）

A.上腔静脉增宽

B.肺静脉扩张

C.横膈抬高

D.胸腔积液

E.肺水肿