题库Question Bank
雅思练习中心IELTS Practice Centre
剑桥雅思 1–21，对答案、算分、讲错题。Cambridge IELTS 1–21: mark, score and review your mistakes.
阅读 80 套 · 听力 84 套 · 写作 84 套80 Reading tests · 84 Listening · 84 Writing
听力与阅读各用自己的换算表，不混着算Listening and Reading each use their own band-conversion table — never blended
口语 Part 1–3 有 AI 考官，写作有 AI 批改An AI examiner for Speaking Parts 1–3, and AI marking for Writing
错题本按 1/3/7/16/35 天回来重考A mistake notebook that re-tests you after 1/3/7/16/35 days
SAT 练习中心SAT Practice Centre
把 Bluebook 考场搬进浏览器。The Bluebook exam room, in your browser.
98 题完整模考，两段自适应A full 98-question mock, adaptive across two stages
模块一决定模块二难度，也决定这一科的上限Module 1 sets Module 2’s difficulty — and the ceiling of your section score
内置 Desmos 计算器与公式参考表Built-in Desmos calculator and formula reference sheet
202 道 NGS 自研题 · 29 题迷你模考免费202 NGS-written questions · a free 29-question mini mock