问题
多项选择题
遥感影像数据融合可分的层次有( )。
A．图像级
B．像元级
C．特征级
D．符号级
E．滤波级
答案
参考答案：B,C,D
解析： 遥感影像数据融合可分为像元级、符号级、特征级三个层次。故选BCD。
搜题请搜索小程序“爱下问搜题”
遥感影像数据融合可分的层次有( )。
A．图像级
B．像元级
C．特征级
D．符号级
E．滤波级
参考答案：B,C,D
解析： 遥感影像数据融合可分为像元级、符号级、特征级三个层次。故选BCD。
We live in computer age (时代). People scientists, teachers, writers and even students use computers to do all kinds of work. But more than 30 years ago, couldn't do much. They were very big and expensive. Very people were interested in them and knew how to use them. Today computers are smaller and , but they can do work than before. Many people like to use them. Some people even have them at home. Computers become very important because they can work than people and make fewer mistakes. Computers can people do a lot of work. Writers now use computers to . Teachers use them to help teaching. Students use them to . Computers can also remember what you them. Computers are very useful and helpful. They are our friends. Do you want to have a computer?
|