最近老婆单位要进行转正考试，无聊就帮老婆把系统题库整理了一下，做成考试练习系统。



纯html js css编写



特点如下：

可以检查错误率

可以随机从题库中出n题来练习

练习题答案的ABCD是随机换位置的-Recently my wife to make positive test unit, bored wife helped organize the exam system a bit, make practice exams system. Pure html js css write the following features: You can check the error rate can be random questions from the exam to practice in the n-answer exercises where ABCD is the random change