is the mother of success. In other words, success came after many .A.Failure; fa
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________ is the mother of success. In other words, success came after many ________.
A.Failure; failures
B.A failure; failure
C.Failure; failure
D.A failure; failures
试题答案
A
failure作抽象意义上的"失败"讲时，为不可数名词；表示具体的"失败事件"时，为可数名词。