單項(xiàng)選擇題當(dāng)利率為10%,計(jì)息期為5時(shí),后付年金現(xiàn)值系數(shù)為3.791;計(jì)息期為6時(shí),后付年金現(xiàn)值系數(shù)為4.355,那么利率為10%。問(wèn):計(jì)息期為6時(shí),先付年金現(xiàn)值系數(shù)為()

A.3.791
B.4.355
C.2.791
D.4.791


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