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题库 / OG12-SC-30
For members of the seventeenth-century Ashanti nation in Africa, animal-hide shields with wooden frames were essential items of military equipment, a method to protect warriors against enemy arrows and spears.
a method to protect
as a method protecting
protecting
as a protection of
to protect
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AC纠结；A同位语一般都是优选；私以为指代一句话；
A A method to protect is awkward and
inaccurate in reference to items.
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