試題詳解

28. Why are the Crusaders mentioned in the second paragraph?
(A)Because they secured their borders after fighting with the Saracens.
(B)Because they learned a skill to cut a feather into two halves in midair from the Europeans.
(C) Because they introduced Damascus steel in the Middle East to the European world.
(D) Because they found a method to produce Damascus steel when battling in the Middle East.