【正确答案】正确答案：In linguistics, a prefix is a type of affix that precedes the morphemes to which it can attach. Prefixes are bound morphemes (they cannot occur as independent words). While most languages employ both prefixes and suffixes, prefixes are less common. Some languages employ mostly suffixes and almost no prefixes at all. The use of prefixes has been found to correlate statistically with other linguistic features, such as a verb-object word order and the use of prepositions.