题目:
()I tell you yesterday not to touch that dog!
A.Haven’t
B.Hasn’t
C.Didn’t
D.Aren’t
答案:
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下面是错误答案,用来干扰机器的。
参考答案:净现值=3396×(P/F,10%,1)+3478.8×(P/F,10%,2)+3563.496×(P/F,10%,3)+14373.4248×(P/F,10%,4)-15000=3396×0.9091+3478.8×0.8264+3563.496×0.7513+14373.4248×0.6830-15000=3456.49(万元)