你先进到sciencefinder里面进行搜索，搜到之后可以来这里我们帮你下载... 你好!你看这几篇能不能帮我下到(一）cha dae y ang.substituted biphenyl compounds: ger offen de,3216835[p].1984-03-18.（二）nicholson john s,turner john leslie.phenylpropionic acids and pyruvate process for their manufacture:ger offen? ?? ? de,2613817[p].1976-10-14.（三） gante joachim, kurmeier hans a. biphenylylalky lamines: ger offen de,2450989[p]1976-04-29，
