《中华人民共和国药品管理法》规定，下列哪些情形必须符合药用要求( )

A．直接接触药品的包装材料

B．直接接触药品的包装容器

C．药品的外包装材料、容器

D．生产药品所需的原料

E．生产药品所需的辅料

OSPF is a link-state routing protocol. It is designed to be run internal to a single (1) system. Each OSPF router maintains an identical(2) describing the autonomous system's topology. From this database, a routing table is calculated by constructing a shortest-path (3).OSPF recalculates routes quickly in the face of topological changes, utilizing aminimum of routing (4) traffic. OSPF provides support for equal-cost multipath. An area routing capability is provided, enabling.an additional level of routing protection and a reduction in routing protocol (5).

空白（5）处应选择（）

A.flow

B.state

C.traffic

D.stream