【单选题】There are several different methods that can be used to create a forecast. The method a forecaster chooses depends upon the experience of the forecaster, the amount of information available to the for...
A.
Imagination of the forecaster.
B.
Necessary amount of information.
C.
Practical knowledge of the forecaster.
D.
Degree of difficulty involved in forecasting.
【单选题】There are several different methods that can be used to create a forecast. The method a forecaster chooses depends upon the experience of the forecaster, the amount of information available to the for...
A.
Imagination of the forecaster.
B.
Practical knowledge of the forecaster.
C.
Necessary amount of information.
D.
Degree of difficulty involved in forecasting.
【多选题】数字水印是信息隐藏的一个重要研究分支,下面关于数字水印的说法正确的是
D.
对鲁棒性要求比较高,对容量要求不高,水印有些可见,有些可不见
【单选题】授予发明专利保护期限为15年,实用新型和外观设计保护期限为10年,均自申请之日起计算。
【多选题】关于海啸说法正确的是( )
A.
智利、秘鲁、日本、印尼、夏威夷群岛等是全球海啸多发区
B.
海啸能量,约40%仍回到海中,60%消耗于岸上
C.
海底地震时,海底地层发生断裂,部分地层出现猛烈上升或下降,由此造成从海底到海面整个海水发生剧烈的“抖动”,形成海啸。
【多选题】下列关于无水胶印的说法中正确的是 。
B.
印版空白部分是硅橡胶层,使用特制油墨并严格控制温度以实现正常印刷
D.
无水胶印印刷机需要加装温度控制装置,严格控制温湿度
【单选题】授予发明专利保护期限15年,实用新型和外观设计保护期限10年,均自申请之日起计算。( )
【单选题】Computer(75)is a complex consisting of two or more connected computing units,it iS used for the purpose of data communication and resource Sharing.