标的物毁损、灭失的风险,在标的物交付之前由( )承担,但法律另有规定或者当事人另有约定的除外。
A.有过错的一方
B.买受人
C.出卖人
D.双方分担
参考答案:C
患者女性,71岁。生气后突然发生右侧剧烈头痛、呕吐、眼球胀痛及眼球充血。血压高达180/110mmHg,内科以高血压、脑血管小卒中而收入院,经内科降压及对症治疗症状缓解。但瞳孔仍大,留院观察治疗一月。出院后第二天,上述头痛眼胀复发,伴右眼视物模糊不清就诊于眼科。既往因类风湿性关节炎,长年口服强的松10mg/日。
本病人可选择哪些术式?()
A.周边虹膜切除术
B.滤过性手术
C.小梁切除术
D.输淋氏管内切开术
E.睫状体剥离术
F.透热凝固术
G.睫状体冷冻术
One of the most widely used routing protocols in IP networks is the Routing Information Protocol (RIP). RIP is the canonical example of a routing protocol built on the ___25___ algorithm. Routing protocols in intemetworks differ slightly from the idealized graph model. In an internetwork, the goal of the routers to forward packets to various ___26___.
Routers running RIP send their advertisement about cost every ___27___ seconds. A router also sends an update message whenever an update from another router causes it to change its routing table.
It is possible to use a range of different metrics or costs for the links in a routing protocol. RIP takes the simplest approach, with all link costs being equal ___28___. Thus it always tries to fend the minimum hop route. Valid distances are 1 through ___29___. This also limits RIP to running on fairly small networks.
28()
A.1
B.15
C.16
D.length of the link