哲学涉及人、世界以及人与世界之间的种种，维特根斯坦论美学关注的就是人与世界之间的语言问题。

A、当图中不存在负权回路但是存在负权边时，Dijkstra算法不一定能求出源点到所有点的最短路。 When the graph doesn't contain circuit of negative weight, but contains the edge of negative weight. Dijkstra algorithm can't guarantee the correctness of the algorithm.

B、当图中不存在负权边时，Dijkstra算法能求出每对顶点间最短路径。 When the graph doesn't contain edge of negative weight, Dijkstra algorithm can calculate the shortest path of each pair of vertices.

C、当图中存在负权回路时，Dijkstra算法也一定能求出源点到所有点的最短路。When the graph contains the circuit of negative weight, Dijkstra algorithm can certainly calculate the shortest path form the single source to all the vertices.

D、Dijkstra算法不能用于每对顶点间最短路计算。Dijkstra algorithm can't be applied to calculate the shortest path of each pair of vertices.

A、墙面抹灰

B、室内楼梯间

C、有维护结构的舞台灯光控制室

D、有柱的雨棚

E、水塔

A、F-

B、Cl-

C、Br-

D、I-

A、不用记忆复杂的IP地址

B、互联网上企业的电子商标

C、企业名称的符号化标识

D、体现企业的所属行业类型

A、The room key.

B、The empty flask

C、The deposit

D、Your passport.

A、镜头

B、取景器

C、CCD

D、输出传感器

A、十字花科

B、豆科

C、葫芦科

D、茄科

根据树的双标记层次遍历序列，求其带度数的后根遍历序列 Given the double-tagging level-order traversal sequence of a tree, please write down the post-order traversal sequence with degree. 比如：已知一棵树的双标记层次遍历序列如下： For example, assume that a tree's double-tagging level-order traversal sequence is shown as followed: