Much exciting research is going on in an effort to find( )these questions.Foremost is the work of Jean Piaget,the Swiss psychologist who pioneered the field and whose theories have had an unparalleled impact on education,especially in Europe. A.answers B.solutions C.resolutions D.conclusions
But more significantly,it will( )materials and machines into space for industrial purposes unimagined two decades age when“sputik”(artificial satellite)was added to the vocabulary. A.supply B.introduce C.deliver D.transfer