搜题，就来5TiKU.com题库【问题】 The designer has applied for a ____ for his new invention. A) tariff B) discount C) version D) patent
The designer has applied for a ____ for his new invention. A) tariff B) discount C) version D) patent
正确答案：D
题目解析：本题出自东北农业大学，东北农业大学大学英语Ⅲ，由丰阳塔题库搜集整理。
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