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问题 选择题

七大洲中，多年平均径流量最多和最少的分别是（    ） 

A．亚洲大洋洲

B．亚洲南美洲

C．北美洲南美洲

D．亚洲非洲

答案

答案：A

在世界七大洲中，多年平均径流总量最多的是亚洲，其次是南美洲，最少的是大洋洲。

完形填空

Directions: Complete the following passage by filling in each blank with one word that best fits the context.

Mozart was born 1_____________January 27, 1756 and died on December 5, 1791. When he was three, he often had lessons with his elder sister. His father took him to many different countries 2.__________ he played music for lots of people.3._ ___, some people didn’t believe that a little boy could write wonderful music. They asked him to stay in a room all by himself for a week and somebody watched 4._________ room all the time. In the week, he finished a new piece 5.____________music. After that, people believed that he could write beautiful music. Mozart died when he was still a young man. 6.____ _______ his short life, he studied music and taught music, played music and wrote music. Even by working 7.________ hard, he couldn’t make much money. Often he had to borrow money 8_________ his friends. But his music made him happy and for more than two hundred years his music has made other people happy, too.
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单项选择题 B1型题

持续青紫伴杵状指（）

A.房间隔缺损

B.室间隔缺损

C.动脉导管未闭

D.肺动脉狭窄

E.法洛四联症
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