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a written promise from a company to repair or replace a product that develops a fault within a fixed period of time , or to do a piece of work again if it is not satisfactory ; a guarantee noun

A weaver√ (正确答案是：A)
B workload√ (正确答案是：B)
C warranty√ (正确答案是：C)
D chary√ (正确答案是：D)