2. 外语
  3. We have had to raise our prices because of the increase in the cost of materials.

We have had to raise our prices because of the increase in the cost of materials.

admin2011-05-29  37
问题 We have had to raise our prices because of the increase in the cost of materials.
选项 A、primitive
B、rough
C、original
D、raw
答案D
解析 raw未加工的，生的；raw materials：原材料，属固定搭配；primitive原始的，未开化的；rough粗糙的，粗略的；original最初的，原本的。句意：由于原材料费的上涨，我们也不得不提高价钱。
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