Final answer:
The crossbow was indeed one of the inventions during the Dark Ages. However, its accuracy as a weapon varied depending on the design and skill of the user.
Step-by-step explanation:
True. The crossbow was indeed one of the inventions during the Dark Ages. However, its accuracy as a weapon varied depending on the design and skill of the user. While some crossbows were accurate, others were not. Factors such as the materials used, the tension of the bowstring, and the craftsmanship of the weapon could affect its accuracy. Therefore, it is true that the crossbow wasn't always accurate and this hindered its effectiveness in warfare during that time.