30．China has about 18 billion yuan on the manned spaceship project in the past 11 years and has made great progress．A．spent B．cost C．used D．paid 【查看更多】

 

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China has          about 18 billion yuan on the manned spaceship project in the past 11 years and has made great progress．

A．spent             B．cost             C．used               D．paid

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