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

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

they produced two reports,but neither of which is useful.代词不能用which吧
因为 neither of which,强调两者中的任何一个都不行.如果用 which,没有这个强调.