【多选题】Space remote sensing is based on the remote sensing of (_______)
A.
man-made earth satellite
D.
aircraft operating in space
【简答题】我国Internet的起步以1987年通过中国学术网(CANET)向世界发出第一封()为标志。
【单选题】土壤组成中。( )占土壤固相部分总质量的90%以上。
【单选题】In respect to the type of energy resources, the types of remote sensing can be divided into _________ remote sensing and __________ remote sensing.
【单选题】In respect to wavelength regions, remote sensing can be classified into three types. They are visible and reflective infrared remote sensing,______________infrared remote sensing and remote sensing
【简答题】阅读理解 In recent years, remote-sensing technologies have become ordinary in archaeological fieldwork (实 地考察). Such tools for excavation produce rapid results and cause no damage to archaeological sites....
【单选题】土壤组成中占土壤固相部分总质量的90%以上的是
【简答题】In respect to the type of energy resources,the types of remote sensing can be divided into ______ remote sensing and _________ remote sensing.