【单选题】Recent advances in remote sensing and geographic information have led the way for the development of______________Remote Sensing, which is an instrument called an"active sensor".
【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.
【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....