题目内容：
According to the passage，which of the following statements is TRUE?
A．The Costa Concordia iS three times the weight of the Titanic． B．Engineers in Italy have successfully righted the wrecked Concordia after an operation that lasted around l2 hours．
C．The salvage operation went ahead despite bad weather conditions．
D．Aa a common means of righting wrecked ships．parbuckling had never been carried out on avessel of the Concordia’S size．
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