问题详情

SpeakerA:MayIspeaktoDr.Wang，please？
SpeakerB:__________
A.Holdonasecond，please.I"1lputhimon.
B.Sorry，Mr.Wangisnotavailablefightnow.
C.IamnotsurebecauseIdon"tknowwhatheisdoing.
D.Thankyouverymuchforcalling.
请帮忙给出正确答案和分析，谢谢！