18．The Sutong highway Bridge.a bridge.is already open to traffic．A．32 kilometre long B．32 kilometres longC．32-kilometre-long D．32-kilometres-long 【查看更多】

 

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The Sutong Highway Bridge，a          bridge，is already open to traffic．

A．32 kilometre long                                     B．32-kilometre-long

C．32 kilometres long                                      D．32-kilometres-long

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