【单选题】“中国梦”的实质就是国家富强、民族复兴、()幸福。
【多选题】下列关于平均数、中位数和众数的描述,正确的是()。
A.
从信息量上看,平均数提供的信息要比中位数和众数多
【判断题】仓库的主要作业是货品的入库、在库管理和出库作业,入库、出库作业时间一般较短,货品的在库时间较长
【单选题】Mr. Hitlon was a tall and thin man. He seemed weak and could not hurt anybody. He killed several enemy soldiers when he was in the army. And he was hurt in the war and had to return to the town where ...
A.
the factory needed a gatekeeper
B.
he had killed some enemy soldiers
C.
he was too weak to stay in the army
D.
the enemy hurt him in the war
【简答题】“中国梦”的实质就是国家富强、民族复兴、( )幸福。
【单选题】下列关于主组分分析的说法中不正确的是()
A.
主组分分析是在统计特征基础上的多维正交线性变换。多波段图像经过这种变换后产生出一组新的组分图像,组分图像的数目只能等于原来的波段数,但组分图像之间消除了相关性。(组分图像的数目可以等于或少于原来的波段数。)
B.
主组分分析的目的是将原来各波段图像中的有用信息集中到数目尽可能少的新的组分图像中,并使各组分图像互不相关,即各自包含不同的地物信息,大大减少总的数据量,便
C.
从几何意义上,相当于空间坐标的旋转。主组分变换,相当于把原来的数据变换到一个新的坐标系统。
D.
主组分变换多用于多变量数据压缩,即把原来的多变量数据在信息损失最小的前提下,变换为尽可能少的新的变量,以减少数据的维数。
【判断题】仓库的主要作业是货品的入库、在库管理和出库作业。
【简答题】Mike: Hey, Lynn, how was your weekend? Lynn: It was great! I went cycling around the city (1)__________, with several cycling club members. We started at our school gate and rode by Dongfeng Bridge in...
【单选题】“中国梦”的实质就是()富强、民族复兴、人民幸福。
【简答题】完形填空。 Mrs Jones was very fond of singing. She had a good voice, 1 some of her high notes sounded like a gate which someone had forgotten to 2 . Mrs Jones was very conscious (清楚的) of this 3 , and took ...