NO.PZ201704060100000207
问题如下：
The net payment cost index that Blanc should calculate is closest to:
选项：
$20.00.
C.$20.19.
解释：
C is correct.
The net payment cost index assumes that the insured will die at the end of a specified period—in this case, the given life expectancy of 20 years. Calculating the net payment cost index includes the following steps.
计算什么的都好说，我就是很迷惑这个net payment cost index的中文含义是什么？
当我们计算出了倒数第二步，得到10095，不就已经得到每年年初要支付的真实成本了么，为什么还要狗尾续貂Divide by the number of thousand dollars of face value？
另外，face value=500'000的保单到底是什么意思啊，是说客户一死，就赔付这么多钱么？
