【简答题】甲公司生产的一款勺子取得了外观设计专利权;乙公司未经许可擅自生产并销售;丙咖啡馆从乙公司购买了一批勺子用作糖勺;丁餐具公司购买后用于成套餐具并销售。问:乙、丙、丁是否侵犯甲公司的外观设计专利权?
【多选题】经济效果评价技术方案的盈利能力主要分析指标包括( )。
【单选题】What is the Cisco IOS default behavior for switching from the shared tree to the shortest path tree in PIM-SM operations?()
A.
immediately after receiving the first packet on the shared tree for a given (S,G)
B.
after receiving over 1 kb/s traffic onthe shared tree for a given (S,G)
C.
10 seconds after receiving the first packet on the shared tree for a given (S,G)
D.
30 seconds after receiving the first packet on the shared tree for a given (S,G)
E.
after receiving over 10 kb/s traffic onthe shared tree for a given (S,G)
【简答题】常采用的单项板跨度尺寸为()m,双向板宜小于()m。
【简答题】常采用的单项板跨度尺寸为____m ,双向板宜小于____m 。
【简答题】已知函数f(x)=(x 2 -ax)e x (x∈R),a为实数. (Ⅰ)当a=0时,求函数f(x)的单调增区间; (Ⅱ)若f(x)在闭区间[-1,1]上为减函数,求a的取值范围.
【单选题】《陶俑》中作者介绍了有秦以来各朝代的陶俑,以下哪一种俑不是汉代俑?
【单选题】灰度直方图与图像之间的关系是()的映射关系