流水参数是在组织流水施工时,用以表达()方面状态的参数。
A.流水施工工艺流程
B.空间布置
C.时间排列
D.资金投入
E.施工人员数量
参考答案:A, B, C
―Do you have anything to do this afternoon?
―What’s up?
―Let’s go shopping. It’s said that Jinying Shop _____, and all the sweaters are sold at half price.
―Why not?
A.has closed down
B.was closing down
C.closes down
D.is closing down
已知二叉树BT的后序遍历序列是dabec,中序遍历序列是debac,它的前序遍历序列是______。
A.cedba
B.acbed
C.decab
D.deabc