第1题:
Routers R1, R2, R3, and R4 connect to the same 10.10.10.0/24 LAN- based subnet. OSPF is fully working in the subnet. Later, R5, whose OSPF priority is higher than the other four routers, joins the subnet.Which of the following are true about the OSPF database exchange process over this subnet at this point?()
A. R5 will send its DD, LSR, and LSU packets to the 224.0.0.5 all - DR - routers multicast address.
B. R5 will send its DD, LSR, and LSU pack ets to the 224.0.0.6 all - DR - routers multicast address.
C. The DR will inform R5 about LSAs by sending its DD, LSR, and LSU packets to the 224.0.0.6 all- SPF - routers multicast address.
D. The DR will inform R5 about LSAs by sending its DD, LSR, and LSU pa ckets to the 224.0.0.5 all- SPF - routers multicast address.
第2题:
Ben, would you like to play football with us?()but I have to wash the dishes first.
ANo, I can't
BI don't want to
CYes, please
DI'd love to
第3题:
假设你是Ben的朋友,请你给Ben刚刚开张的服装店写一则广告。要求:内容包括服装、颜色、价格、优惠活动等。50-100词左右。
第4题:
Ben has to study for the English test.(改为否定句)
Ben ______ ______ ______study for the English test.
第5题:
5、当飞机受到左侧滑时,垂尾会产生向 的力和向 偏航力矩。 In left sideslip, the vertical tail will generate a side force and yawing moment.
A.左,左 left, left
B.左,右 left, right
C.右,左 right, left
D.右,右 right, right