测定巷道风流中的瓦斯浓度时应在巷道风流的()部进行。
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男性,26岁,因车祸致多发伤行外科手术治疗,共计失血约2000ml,急需输血治疗。若成分输血,除输注红细胞外,还需输注哪些血液成分()
A. 白细胞
B. 血小板
C. 凝血因子
D. 凝血酶
E. 以上均不正确
The network administrator of the Oregon router adds the follwing command to the router configuration: ip route 192.168.12.0 255.255.255.0 172.16.12.1. What are the results of adding this command?()
A. The command establishes a static route
B. The command invokes a dynamic routing protocol for 192.168.12.0
C. Traffic for network 192.168.12.0 is forwarded to 172.16.12.1
D. Traffic for all networks is forwarded to 172.16.12.1
E. This route is automatically propagated throughout the entire network
F. Traffic for network 172.16.12.0 is forwarded to the 192.168.12.0 network