题目内容

以下选项中，哪项是肝脏CTA检查时，导管应在的位置()

A. 肝动脉内
B. 肾动脉内
C. 脾动脉内
D. 肠系膜上动脉内
E. 腹主动脉内

查看答案

搜索结果不匹配？点我反馈

更多问题

某企业生产需要甲材料，年需要量为100千克，如果自制，单位变动成本20元，而且需购买生产设备，每年发生专属固定费用2000元；如果外购，单价为30元。企业应选择（）。

While troubleshooting some connectivity issues， you issue the "show ip ospf database" in order toexamine the link state database. Which three of the statements below are true regarding theOSPF link state database？（）

A. Each router has an identical link state database
B. External routes are imported into a separate link state database
C. Synchronization of link state databases is maintained via flooding of LSAs
D. Information in the link state database is used to build a routing table by calculating a shortest-path tree
E. By default， link state databases are refreshed every 10 minutes in the absence of topologychange

查看答案