贾思勰在《齐民要术》一书中提出农业生产要“顺天时，量地利，则用力少而成功多”。这一观点主要强调了

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='14863' and id < 1228385 and id<>'1228385' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='14863' and id > 1228385 and id<>'1228385' order by id asc limit 5