单选题 Please be informed that any defective products returned within 30 days of purchase is considered under ______ and will be replaced at no charge.
  • A. repair
  • B. authority
  • C. claim
  • D. warranty
【正确答案】 D
【答案解析】[解析] 词汇：名词 1．这是一道词汇题，选项均为名词。 2．从“对30日内退回的商品给予保修”这一语义看，under warranty(在保修期内)最为恰当，因此D为正确选项。