单选题

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 As a common means of righting wrecked ships, parbuckling had never been carried out on a vessel of the Concordia´s size.

解析：
细节理解题。本题考查考生对文章整体的把握。根据原文第四段第二句话“it has never before been used on such a large ship”，可知，套拉索这个过程还从来没有被用在如此巨型的船只上，与D项相符，故选D。根据原文第二段第一句话“The Costa Concordia is twice the weight of the Titanic”可知，歌诗达协和号是泰坦尼克号重量的两倍，选项A错误。根据原文第二段第三句话，让歌诗达协和号重新直立起来花了工程师l9个小时的时间，选项B错误。根据原文第四段第三句话“He and other engineers worked for l9 hours before Concordia was declared completely upright”可知，工人们一直在等待有利的天气条件展开行动，选项C错误。因此选D。