三羧酸循环的生理意义是（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30913' and id < 2487729 and id<>'2487729' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30913' and id > 2487729 and id<>'2487729' order by id asc limit 5