The designer has applied for a ______ for his new invention.

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问题 The designer has applied for a ______ for his new invention.

选项 A、tariff
B、discount
C、version
D、patent

答案D

解析 patent意为“专利，专利权”，例如：The patent runs out in two years’time．这项专利权两年后就失效。tariff意为“关税，税率”，例如：High tariff is a barrier to the international trade．高额关税是国际贸易中的障碍。discount意为“(价格、债款等)折扣”，例如：Employees are privileged to buy at a discount．雇员们享有按折扣价购物的特权。version意为“版本，

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专业英语四级

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The designer has applied for a ______ for his new invention.

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