硫酸钡吸附血浆中主要含下列哪一组凝血因子()
A.因子Ⅶ和因子Ⅹ
B.因子Ⅴ和因子Ⅷ
C.因子Ⅱ,Ⅴ,Ⅶ,Ⅹ
D.因子Ⅰ,Ⅲ,Ⅴ,Ⅶ
E.因子Ⅹ和因子Ⅴ
参考答案:B
Open Shortest Path First(OSPF)is a (71) routing algorithm that (72) work done on theOSI IS-IS intradomain routing protocol. This routing, as compared to distance-vector routing,requires (73) processing power. The (74) algorithm is used to calculate mutes. OSPFrouting table updates only take place when necessary, (75) at regular intervals.
A.but rather
B.rather too
C.rather than
D.rather that
设临时高压消防给水系统的高层建筑和裙房,其室内消火栓给水系统应在每个消火栓处设置()。
A、警示标志
B、直接启动消防水泵的按钮
C、应急事故照明
D、报警按钮