30．―There are a lot of robots in the exhibition． ―Oh．really? I will go there． A．on show B．displayed C．on display D．a(chǎn)ll of the above 【查看更多】

 

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—There are a lot of robots     in the exhibition．

—Oh．really? I will go there．

A．on show    B．displayed    C．on display    D．a(chǎn)ll of the above

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