【简答题】大汶口文化的( ) 已有形音义三种成分,是汉字产生的雏形。
【简答题】国际工业转移使各国可以根据自己的优势条件发展相应的产业,从而促进了国际产业分工和合作。回答以下问题。 (1)产业典型产品周期一般分为四个阶段,依据下图判断,信息产业处于____期和____期(填字母); 纺织工业处于____期或____期(填字母)。 据典型产品在生命周期中的不同阶段,可以把产业分为:开发期(A)、增长期(B)、成熟期(C)和衰退期(D)四个发展阶段。 (2)影响工业转移的因素很多...
【判断题】A firm’s mission statement will identify the goals of the firm.
【单选题】Intel is provided as an example of a firm that has continuously changed its mission statement, including most recently moving to a customer-focused mission. This is an indication of what?
A.
Missions are best left as they were originally crafted for the firm.
B.
Intel's mission likely created its superior performance over this period.
C.
Missions can be inspirational for both employees and customers.
D.
The mission was changed after Intel had already changed its business focus
【判断题】在无人机动力系统中,关于螺旋桨上面的CW和CCW。CW,CLOCKWISE 的缩写,表示顺时针;CCW, counter-clockwise的缩写,表示逆时针。用在螺旋桨上面指旋转的方向。
【判断题】A firm's mission statement will dientify the goals of the firm.
【单选题】The development of a firm’s mission typically involves which of the following?
C.
The CEO and top managers.
【单选题】下面关于特征选择的说法中,错误的是:
A.
特征选择不仅可以降低特征空间的维度,还可以消除特征之间的相关性
B.
基于类内类间距离的可分性判据是通过计算各类特征向量之间的平均距离来作为评价准则。
C.
基于类内类间距离的可分性判据的值越大,说明可分离性越好。
D.
当各类的协方差矩阵相差不大时,采用基于类内类间距离的可分性判据的效果会好一些。
【单选题】Good mission statements identify the ________ of a firm's products to its customers.