图2中AB是晨昏圈的一部分，此时北京昼长夜短。读图回答题。此

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更新 2022-09-03
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图2中AB是晨昏圈的一部分，此时北京昼长夜短。读图回答题。

此时地球上出现极昼的纬度范围是

A．70°N～90°N

B．70°S～90°S

C．66°34＇N～90°N

D．66°34＇S～90°S

此时新一天的范围占全球的比例是

A．四分之一	B．八分之一
C．八分之五	D．八分之三

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His factory broke down because of the financial crisis, but it was different_____ of me, I owed the copyright of products.
A in caseB. in the eventC. in the caseD. in no case

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It’s not easy for the expert to ______ pig flu.in humans from regular human seasonal influenza.

A．distinguish

B．separate

C．identify

D．recognize

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Premier Wen Jiabao said that if we worked hard and____ optimistic,we were_____ win the war against the finanical crisis.

A．were; bounding

B．were; bound to

C．was; bounding to

D．had; bounded to

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Single-parent usually____ some of the functions that absent adult in the house would have served under the financial crisis.

A．takes over

B．takes after

C．takes out

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He was unaware of the financial crisis involed, so his choice was quite_____.

A．rational

B．arbitrary

C．mechanical

D．predictable

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相关知识点

地球运动的地理意义

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