The satellites go the earth and help us learn more about the earth. A. through B. over C.——青夏教育精英家教网—

摘要： The satellites go the earth and help us learn more about the earth. A. through B. over C. to D. round

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从所给的四个选项中选择最佳答案

The satellites go ________ the earth and help us to learn more about it.

[　　]

A．through　　　　　B．over

C．across　　　　　 D．round

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