Duringthepasttwodecades,researchhas________ourknowledgeofdaydreaming.
A
A 扩大 B 浮现、露出 C 下降 D 征服
Duringthepasttwodecades,researchhas________ourknowledgeofdaydreaming.
Iunderstoodfromherthatyouundertookotherimportantwork______.
Robotsdifferfromautomaticmachines________aftercompletionofonespecifictask，theycanbereprogrammedbyacomputertodoanotherone.