【单选题】Theprofessorcanhardlyfindsufficientgrounds______hisargumentinfavourofthenewtheory.A、forwhichtobaseB、onwhichtobaseC、whichtobebasedonD、whichtobaseon
【单选题】Theprofessorcanhardlyfindsufficientgrounds______hisargumentinfavourofthenewtheory.A、forwhichtobaseB、onwhichtobaseC、whichtobebasedonD、whichtobaseon



