they produced two reports,but neither of which is useful.代词不能用which吧

来源：学生作业帮助网 编辑：作业帮 时间：2024/08/07 04:43:14
x)+HT((O)MNMQ()W(J-/*)I*-QK*(ROS(LP,V(-NM+{{Ovh| mo~ t';vayg׋ Ov,ydZd';Xy/ȸ=zO5=7h*T߳M |&P =<;/‴