相同条件下，关于铝和铜的导电性能，下列描述正确的是(    )。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69524' and id < 4504274 and id<>'4504274' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69524' and id > 4504274 and id<>'4504274' order by id asc limit 5