70道分级题目 · 全面检验学习成果70 Graded Questions · Comprehensive Learning Assessment
15道简单 · 20道普通 · 15道困难 · 10道超难15 Easy · 20 Medium · 15 Hard · 10 Extreme
测验说明： 选择答案后将立即显示正确答案和解析。建议先复习笔记再开始测验。 Instructions: After selecting an answer, the correct answer and explanation will be shown immediately. We recommend reviewing the notes before starting the quiz.