【正确答案】正确答案：Synonymy refers to the sameness or close similarity of meaning. A total synonymy is rare and synonyms all differ from each other in one way or another. Relative synonyms are context dependent. For example, "purchase" and "buy" are synonyms, but the latter seems to be more appropriate in the sentence "A little boy______a toy. " In the same way, "offspring" seems to be a better choice than "kids" when we mention "the children from a royal family".

【答案解析】解析：(考查相对近义词)