利尿药初期降压机制可能是（）.

A.降低血管对缩血管剂的反应性

B.增加血管对扩血管剂的反应性

C.降低动脉壁细胞的Na含量

D.排钠利尿，降低胞外液及血容量

E.诱导动脉壁产生扩血管物质

The Border Gateway Protocol (BGP) is an interautonomous system (28) protocol. The primary function of a BGP speaking system is to exchange network (29) information with other BGP system. This network reachability information includes information on the list of Autonomous System (ASs) that reachability information traverses. BGP-4 provides a new set of mechanisms for supporting (30) interdomain routing. These mechanisms include support for advertising an IP (31) and eliminate the concept of network class within BGR BGP-4 also introduces mechanisms that allow aggregation of routes, including. (32) of AS paths. These changes provide support for the proposed supernettting scheme.

A. connecting B. resolving C. routing D. supernettting