你可能感兴趣的试题
had settled; are made up of have settled; make up , settled; make up of are settling; make up for
X ray trees and plants a special instrument trained eyes
Scientists Searching for Metals with Special Power. New Methods of Searching for Minerals. Gold Could Be Found by Trees and Plants. A New Method of Searching for Minerals—Using Trees and Plants.
X-ray trees and plants a special instrument trained eyes
gold silver metal minerals
larger amounts of gold in the branches than in the seeds smaller amounts of gold in the roots than in the branches less amounts of gold in the seeds growing on the ends of branches than seeds growing nearest to the tree trunk there was more gold in the branches than in the roots
take up pick up make up hold up
marking marked being marked have been marked
gold silver metal minerals
there were larger amounts of gold in the branches than in the seeds there were smaller amounts of gold in the roots than in the branches there were less amounts of gold in the seeds growing on the ends of branches than seeds growing nearest to the tree trunk there was more gold in the branches than in the roots
had settled; make of have settled; make up settled; make up of are settling; make up for
湘公网安备 43130202000226号