已知二叉树后序遍历序列是 dabec，中序遍历序列是 debac，它的前序遍历序列是( )。
A、achedD
暂无解析
WhichjobisIsabelgoingtoapplyfor?
Properspaceplanningis__forconductingasuccessfulbusinessmeeting.
Abusinessmeetingagendaisplan__abusinessmeeting.
Doyouthinkcompaniesshouldprovidesportsfacilitiesfortheirstaff?(Why?)
Everyyear,about10millionofthe150millionworkersintheEuropeanCommunityareaffectedbyincidents,”accidents”ordiseasesatwork.
