请参见图示。所示路由器端口有何用途？https://p.ananas.chaoxing.com/star3/origin/d5b51221727ae4ecf9abb3570e672936.png
举一反三
- 以下说法正确的是 https://p.ananas.chaoxing.com/star3/origin/32620d45b840963fcfd2a9e499329436.png https://p.ananas.chaoxing.com/star3/origin/be2489a6491756903a1a67528363e754.png https://p.ananas.chaoxing.com/star3/origin/c5d98544629d58d5c134ed8bc9743922.png https://p.ananas.chaoxing.com/star3/origin/eef7c4f0c58f9f292270fbd5e9600bd3.png
- https://p.ananas.chaoxing.com/star3/origin/b31898e8d988e836116efe3cba9a910f.pnghttps://p.ananas.chaoxing.com/star3/origin/fb8dc50d75c1b761d9389a77bc20b4fd.pnghttps://p.ananas.chaoxing.com/star3/origin/7e75cd17522334f54b2eaedb009dba9a.png
- 图示结构有个多余约束。https://p.ananas.chaoxing.com/star3/origin/eabd443d740dc61c50fa9ac0b690a37a.png
- ,当在连续时,___https://p.ananas.chaoxing.com/star3/origin/2d7d11725699807cb0b07057a0e6aa1b.pnghttps://p.ananas.chaoxing.com/star3/origin/8afd799308433cf0c1bf99426a50b068.pnghttps://p.ananas.chaoxing.com/star3/origin/6fc93eeaca0b4e2eeb3232571be04039.pnghttps://p.ananas.chaoxing.com/star3/origin/9ac20ba1a54c062278a4c0602f36ab4c.png
- 图示电路中，已知 I 1 = 4A，I 2 = -2A，I 3= 1A，I 4= -3A，I 5=()A 。https://p.ananas.chaoxing.com/star3/origin/1258855a36c0da720d1f654ab778512f.png