The status of the jcct was elevated following the december 2003 meeting of president bush and chinese premier wen jiabao to serve as a problem - solving mechanism for higher - level attention on outstanding trade disputes 在布什总统和中国总理温家宝于2003年12月举行会晤以后,美中商贸联合委员会上升为在更高层间解决悬而未决的贸易争端的机制。