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职称英语理工类考试考前每日一练 阅读下面这篇短文，短文后列出七个句子，请根据短文的内容对每个句子作出判断.如果该句提供的是正确信息，清在答题卡上把A涂黑;如果该句提供的是错误信息，请存答题卡上把B涂黑;如果该句的信息文章中没有提及，请在答题卡上把C涂黑。 Irish Dolphins may have a unique dialect Irish scientists monitoring dolphins living in a river estuary iIl the southwest 0f the country believe they may have developed a unique dialect to eommulncate with each other. The Shannon Dolphin and Wildlife Foundation1 has been studying a group 0f up t0 120 bottlenose dolphins in the River Shannon2 using voealisalions collected on a computer in a cow shed3 near the River Shannon. As part of a research prnject，student Ronan t]iekey digitiscd and analysed a total of 1，882 whistles from the Irish dolphins and those4 from the Welsh dolphins 0n a eolnputelaud separated them into six fundamental whistle types anti 32 diflerent categories5.of the categories.11e touud most6 were used hv both sets of dolphins7 一but eight were only heard frorn the Irish dolphins. We are building up a catalogue of the different whisile types they LISP and trving to associate them with behaviour like fbraging，resting，socialising and the cOmmunications of groups with calves，project leader Simon BeITow said.Essentially we are building up what is like a dictionary of words they use or sounds they make. | 
