2. 外语
  3. Barely __________________ (设计者刚为其新发明申请了专利) when he found other similar designs.

Barely __________________ (设计者刚为其新发明申请了专利) when he found other similar designs.

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问题 Barely __________________ (设计者刚为其新发明申请了专利) when he found other similar designs.
选项
答案had the designer applied for a patent for his new invention
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大学英语六级

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