题目

我国专利法规定的专利的保护期限是从何时开始起算（） A . 公告之日 B . 授权之日 C . 申请之日 D . 专利完成之日 答案：C— Oh, this cartoon book is very interesting. Where did you buy ____? I want to buy _____, too. — In the bookshop near my home. A．one; one          B．it; it              C．it; one            D．one; it