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    25．Televisions enable us to see things happen almost at the exact moment ． A．which they are happening B．when they are happening C．which they happen D．they have happened 【查看更多】

     

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    Televisions enable us to see things happen almost at the exact moment ______．

    A．which they are happening                          B．when they are happening

    C．which they happen                                   D．they have happened

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