Recently I took a test at brainbench and got not a bad result (something like 4.5, master degree). I didn't know the answer only on 1 question (the rest I was sure about or at least I thought I knew the correct answer :) ). The question is:Recently I took a test at brainbench and got no
阅读背景：
哪个不是创建自定义异常的原因？
来源：互联网
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