完形填空。Arobotisaspecialkindofmachine.Itisamachinethatcanf...
問題詳情：完形填空。Arobotisaspecialkindofmachine.Itisamachinethatcanfollowinstructions(命令).__1_itisamachine，itseldommakesmistakesorgetstired.Andit_2__complains(抱怨)，unlessyoutellitto!Robotsarearoundus...