女，23岁，孕3产0，有多个性伴侣，高热伴下腹痛12小时，于2013年2月21日就诊妇科。平素月经5/30天，量中，末次月经2013年1月10日。查体：体温38.5℃，下腹压痛，无反跳痛及肌紧张，子宫颈充血、宫颈口有脓性分泌物流出，子宫增大如孕40天大小、压痛，双附件区压痛。

此患者应考虑进行哪些辅助检查（）

A.尿妊娠试验

B.妇科B型超声

C.血常规

D.腹部X线

E. * * 分泌物0.9%氯化钠湿片查找白细胞

F.子宫颈管分泌物培养

Routing protocols use different techniques for assigning ______ to individual networks. Further, each routing protocol forms a metric aggregation in a different way. Most routing protocols can use multiple paths if the paths have an equal ______ . Some routing protocols can even use multiple paths when paths have an unequal cost. In either case, load ______ can improve overall allocation of network bandwidth. When multiple paths are used, there are several ways to distribute the packets. The two most common mechanisms are per-packet load balancing and per-destination load balancing. Per-packet load balancing distributes the ______ across the possible routes in a manner proportional to the route metrics. Per-destination load balancing distributes packets across the possible routes based on ______.

A. jitter B. entity C. respond time D. cost