课外体育活动是高校体育课程的(),是()的重要组织形式。
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300~500总吨的船舶必须配备()部用于救生艇上的VHF双向无线电话.
A. 1
B. 2
C. 3
D. 4
医疗保险是参保人或公民因病需要治疗时,根据法律规定从国家或社会获得(),对因病造成的经济损失及医疗费用给予适当补偿,以恢复和保障参保人或公民身体健康的一种社会保险制度。
A. 医疗服务
B. 诊疗服务
C. 康复服务
D. 报销服务
R1 forwards a packet from Host 1 to remote Server 1. Which statement describes the use of a MAC as the frame carrying this packet leaves the s0/0/0 interface of R1()。
A. The frame does not have MAC addresses.
B. The source MAC address in the frame is the MAC address of the NIC of Host 1.
C. The source MAC address in the frame is the MAC address of the s0/0/0 interface of R1.
D. The destination MAC address in the frame is the MAC address of the NICof server 1.
E. The destination MAC address in the frame is the MAC address of the s0/0/0 interface of R2