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← HistoryWhich mechanism increased crossbow effectiveness when implementing gunpowder propulsion around 14th-century China?
A)Rapid gas expansion efficiency✓
B)Decreased string material fatigue
C)Enhanced cast-iron trigger strength
D)Improved bolt aerodynamic stability
💡 Explanation
More forceful launching occurred because the rapid gas expansion efficiency behind the bolt directly increased muzzle velocity and range. Therefore, the gunpowder additive made it travel considerably farther rather than simply adding to trigger pull or better bolts.
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