SELF-TEST · 综合自测SELF-TEST · RANDOM 15
综合自测Self-Test
题库共 12 组、144 道题，每次随机抽 15 题：点选项即时判分，做完出分，错题逐条复盘，抽新一轮随时重来。144 questions in the bank; every run draws a random 15. Instant feedback, final score, mistake review, reshuffle anytime.
快捷键练习Shortcut Drill
看场景描述，点「按给我看」，然后在键盘上真的按出来。按对了才揭晓正确键位，按错再试。Read the scenario, click "Press it", then actually press the combo. The keys are revealed only when you get it right.
Space剪辑界面里，想播放或暂停时间线？On the Edit page, play or pause the timeline?
J想让时间线倒放，而且连按还会越倒越快？Play the timeline backwards, faster with each tap?
K倒放或快进途中，想让播放立刻停下来？Stop playback instantly while shuttling?
L想让时间线快进，连按加速？Fast-forward the timeline, faster with each tap?
I想在源片段当前位置标记入点？Mark an In point at the current frame?
O想标记出点？Mark an Out point?
⌘B想在播放头的位置把片段一刀切开？Blade the clip right at the playhead?
⌘Z上一步操作搞砸了，想撤销？Messed up — undo the last action?
ShiftZ想一键让整条时间线缩放到刚好铺满屏幕？Zoom the whole timeline to fit the screen in one keystroke?
⌘S想保存项目？Save the project?