完成 Baseball - Official Rules of Baseball 的前面级别后才能开启此测试。请从头开始，前几个测试已开放。
Law 1 - Objectives
Offence, Defence and the Run
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Third Outs and the Winner
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Law 2 - Playing Field
The Diamond and the Outfield
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Plate, Bases, Rubber and Mound
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Law 3 - Equipment
Ball and Bat
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Uniforms
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Gloves and Protective Equipment
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Law 4 - Game Personnel
Law 5 - Pre-Game Procedures
Field Condition and Practice
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Line-ups, Ground Rules and Security
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Law 6 - Definition of Terms
Pitches, Strikes and Balls
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Batted Balls and Catches
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Plays and People
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Law 7 - Game: Beginning and Ending
Starting the Game
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Substitutions
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Regulation, Called and Suspended Games
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Forfeits, Protests and Fights
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Law 8 - Ball in Play
Live Ball
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Dead Balls
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Time and Conduct
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Law 9 - Batting
Batting Order and the Designated Hitter
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The Batter's Box
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Illegal Action and Out of Turn
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When the Batter Is Out
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Law 10 - Base Running
Becoming a Runner
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Bases and Awards
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Slides and Outs
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Law 11 - Appeal Plays
Law 12 - Interference, Obstruction and Collisions
Interference by the Batting Team
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Other Interference
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Obstruction and Collisions
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Law 13 - Pitching
Positions and the Pitch Clock
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Prohibitions and Throws
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Balks and Mound Visits
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Law 14 - The Umpire
Law 15 - Official Scorer