问题如下：
Banks are forecasting expected losses on loans to commercial borrowers. If the borrower fails to meet its financial obligations, 60% of the loss will be incurred. The above risk measures are:
选项：
A.recovery rate.
B.loss rate.
C.the probability of default.
D.unexpected loss.
解释：
B is correct.
考点： loss rate.
解析：如果借款人违约，所述60%的损失为损失率，其他选项均为打酱油的选项。
如果这道题增加expected loss 的选项，该怎么选择？相比较LR ，EL只是金额的形式，LR是%的？可以这样理解吗
