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The earliest settlers in Ireland came around 7000 BC in the Mesolithic or middle Stone Age Period.（)

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The finished products should be sampled to check their quality before they leave the factory.成品在出厂前应该进行抽样检查。（)

A committee which is established on a permanent basis is known as an ad hoc committee.（)

Education is compulsory for children between the ages of 6 and 16 years, but children may enter school at 5 and continue until they are 19.（)

174301－－－a hundred and seventy－four thousand,three hundred and one.（)