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【单选题】
下列能成为实用新型专利权的客体的是（）。
A.
一种新型玉米品种
B.
以十二生肖图为装饰的刀具
C.
物质分子结构、成份的改进
D.
专门用于在混凝土上打孔的钻头的形状革新
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参考答案：
参考解析：
刷刷题刷刷变学霸
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【单选题】差跑握珍企羡洪．我国实用新型专利权的保护期是快杰酬旬轨袄（ 南么辫炼瞒火随壳）
A.
自申请日起5年
B.
自申请日起10年
C.
自申请日起15年
D.
自申请日起20年
【单选题】The old idea that child prodigies(神童)'burn themselves' or 'overtax their brains' in the early years, therefore, are prey to failure and (at worst)mental illness is just a myth．As a matter of fact, the...
A.
how many gifted children turned successful when they grew up.
B.
that bright children were unlikely to physically and mentally healthy.
C.
that gifted children were most likely to become bright grown-ups.
D.
that when the bright children grew up, they would become ordinary.
【单选题】王某和刘某就王某所享有的一项专利权的转让订立了书面合同，该专利权转让何时生效( )
A.
合同签订时生效
B.
当事人意思表示一致时生效
C.
经国务院专利行政部门登记和公告后方能生效
D.
刘某实际掌握该项专利权时生效