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【单选题】
按先进先出法计算确定的本月甲材料结存的实际成本，正确的是( )。A.
本月甲材料结存的实际成本为1 000元
B.
本月甲材料结存的实际成本为1 100元
C.
本月甲材料结存的实际成本为l 200元
D.
本月甲材料结存的实际成本为4 800元
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【单选题】When an invention is made, the inventor has three possible courses of action open to him: he can give the invention to the whole world by publishing it, keep the idea secret, or patent it. A granted p...
A.
It is necessary for an inventor to apply for a patent before he makes his invention public.
B.
A patent holder must publicize the details of his invention when its legal period is over.
C.
one can get all the details of a patented invention from a library attached to the patent.
D.
When a patent becomes out of effect, it can be re-patented or extended if necessary.
【简答题】A．Courses for doctors. B．Courses for businessmen. C．Courses for reporters. D．Courses for lawyers.
【单选题】When an invention is made, the inventor has three possible courses of action open to him: he can give the invention to the world by publishing it, keep the idea secret, or patent it. A granted patent ...
A.
an approach to patents
B.
the application for patents
C.
the use of patents
D.
the access to patents
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