The drugaddict spent much money on his drug every day, ________ he became poorer and poorer.
A.as a resultB.as the resultC.as a result of whichD.as a result of在线课程C
解析：
本题考查非限制性定语从句．若选答案A则空白处后面应该是逗号，且空白前应该有and或为句号．