20世纪上半叶,中国古代地理学实现了向近代地理学的跨越,标志是什么?

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问题:

20世纪上半叶,中国古代地理学实现了向近代地理学的跨越,标志是什么?

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When Ben Franklin was only a boy,he always wanted to know about things. He was always asking his father and brothers “What?”and “How?” and “Why?”

They couldn't always tell him what he wanted to know.

When they couldn't tell him,Ben tried to find out for himself.

Many times Ben did find out things that no one knew before. The other boys would say,“That Ben Franklin!He's always finding out something new!”

Ben lived close to the water.He liked to go there to see the boats. He saw how the wind blew them across the water.

One day Ben said to himself,“Why can't the wind help me float(漂浮)across the water?And I'm going to try.” Ben got his big kite.He took hold of the kite string(线)and ran with it.The wind took the kite up into the air. Then Ben jumped into the water.

The wind blew the kite high into the air.Ben began to float across the water. Soon he was on the other side,and he had not worked at all

One boy shouted,“Look at Ben floating across the water!His kite takes him to the other side without any work!”

“Yes,” said another.“He's always finding new ways to do things.”

小题1:When he was only a child,Ben  ________.

A.liked to fly a kite by himself

B.always asked easy questions

C.always liked to play with water

D.always liked to find out how things worked小题2:His father and brothers ________.

A.couldn't answer all his questions

B.could answer all his questions

C.tried hard to find out something new for him

D.let him answer all the questions himself小题3:In the passage,the sentence “and he had not worked at all” means“_______”.

A.he worked hard to cross the water

B.he didn't go to work that day

C.he didn't cross the water at all

D.he crossed the water in an easy way

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学校买来720个本子,平均分给9个班,每个班分到(  )个.
A.80B.18C.90
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HBV的前C区基因编码()

A.HBcAg

B.HBsAg

C.HBV-DNA

D.HBxAg

E.HBeAg

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某普通投资者准备投资10万元申购某开放式基金,基金份额净值为2.00元,申购费率为0.50%,最终获得的份额约为()份。

A.80000 

B.50000 

C.49751 

D.49750

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在夜晚,发现“月亮在白莲花般的云朵里穿行”,这时选定的参考系是()

A.地面

B.云

C.月亮

D.观察者

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