【判断题】马氏距离通过协方差矩阵来兼顾图像特征在不同类中的差异性。
【单选题】Which of the following might be true according to what you hear?
A.
The plane belonged to the Mexican government
B.
The plane belonged to a US businessman
C.
The owner of the plane was a drug smuggler.
D.
It was a plane of the US police.
【单选题】Did you know whom the case _____? [ ]
【简答题】教育技术学专业人才的要求,专业能力结构要求包括哪六种:____、_____、_____、____、_____、_____。
【单选题】下列有关收入的说法中,正确的是( )
A.
收入在扣除相关成本费用后,必须会导致企业所有者权益增加
B.
企业销售商品采用预收货款形式的,应于收到货款时确认收入
D.
企业销售商品采用以旧换新方式的,销售商品的收入应按销售商品价格扣除回收商品的价格确定
【单选题】This nice magazine _____ your brother.
【单选题】Washington's teapot is more valuable as antiques because ______.
A.
it belonged to the 18th century America
B.
it had aesthetic and practical value
C.
Washington was the greatest person
D.
it played a big role in Washington's life
【单选题】China is a developing country __ the third world.