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【单选题】
企业将所纳税款通过提高商品或生产要素价格的方法转嫁给购买者或者最终消费担,这种最为典型、最具普遍意义的税负转嫁形式在税收上通常称为( )。A.
税负后转
B.
税负前转
C.
税负消转
D.
税负叠转
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反馈参考答案：
举一反三
【单选题】可燃气体泄漏报警和控制电路如下图所示,下列有关功能和注意事项的说明不正确的是:
A.
本电路中考虑设置预热环节,主要是接触燃烧式传感器的工作原理决定的。
B.
电路中D1的作用是单向导通,而D2和D3的作用是相同的
C.
若被测气体浓度高于报警点,则U2B的同相端电位高于反相端,U2B输出高电压,Q1导通,声光报警。
D.
若被测气体浓度低于报警点,则U2B反相端电位高于同相端,U2B输出低电压,Q1截止,报警电路不工作。
【单选题】下列Cisco第三层交换机的路由表信息中,路由表项全部正确的是
A.
O 202.205.159.0/24 [110/20] via 202.112.62.242, 00:23:00, Vlan2C 202.112.7.0/24 is directly commected, Vlan157C 219.243.224.168 is directy connected VIan30O E2 202.205.233.0/24 [110/20] via 202.112.62 242, 00:23:00,Vlan253S 202.38.97.196 [1/0]via 202.112.41.226S* 0.0.0.0/0 [1/0]via 202.112.38.17
B.
O 202.205.159.0/24[110/20] via 202. 112.62.242, 00:23:00 Vlan2
【单选题】如上图所示,如果a、b视为一个节点,那么在利用支路电流法时,下面描述正确的是
A.
可以列3个KCL电流方程和3个KVL电压方程
B.
可以列3个KCL电流方程和2个KVL电压方程
C.
可以列2个KCL电流方程和3个KVL电压方程
D.
可以列2个KCL电流方程和4个KVL电压方程
【单选题】下列Cisco第三层交换机的路由表信息中，路由表项全部正确的是______。
A.
O 202.205.159.0/24 [110/20] via 202.112.62.242,00:23:00,Vlan2C 202.112.7.0/24 is directly connected,FastEthernet2/2C 219.243.224.168 is directly connected,GigabitEthernet8/0O E2 202.205.233.0/24 [110/20] via 202.112.62.242,00:23:00,Vlan253S 202.38.97.196 [1/0] via 202.112.41.226S * 0.0.0.0/0 [1/0] via 202.112.38.17
B.
O 202.205.159.0/24 [110/20] via 202.112.62.242,00:23L00,Vlan2C 202.112.7.0/24 is directly connected,Vlan157C 219.243.224.168 is directly connected,Vlan30O E2 202.205.233.0/24 [110/20] via 202.112.62.242,00:23:00,Vlan253S 202.38.97.196 [0/0] via 202.112.41.226S * 0.0.0.0/32 [0/0] via 202.112.38.17
C.
O 202.205.159.0/24 [110/20] via 202.112.62.242,00:23:00,Vlan2C 202.112.7.0/24 is directly connected,Vlanl57C 219.243.224.168 is directly connected,Vlan30O E2 202.205.233.0/24 [110/20] via 202.112.62.242,00:23:00,Vlan253S 202.38.97.196 [1/0] via 202.112.41.226S * 0.0.0.0/0 [1/0] via 202.112.38.17
D.
O 202.205.159.0/24 [115/20] via 202.112.62.242,00:23:00,Vlan2C 202.112.7.0/24 is directly connected,Vlanl57C 219.243.224.168 is directly connected,Vlan30O E2 202.205.233.0/24 [115/20] via 202.112.62.242,00:23:00,Vlan253S 202.38.97.196 [1/0] via 202.112.41.226S * 0.0.0.0/0 [1/0] via 202.112.38.17
【单选题】下列是一台第三层交换机的路由表信息,表中的管理距离值为缺省值,其中路由表项全部正确的是
A.
O 162.105.152.0/24 [110/2]via 162.105.254.8, 00:23:00 Vlan2 O 162.105.152.0/24 [110/2]via 162.105.254.14, 00:23:00 Vlan2 C 162.105.157.0/24 is directly connected Vian157 C 162.105.156.0/24 is directy connected Vlan30 O E1 162.105.144.0/25 [110/30] via 162. 105.253.249,00:23:00,Vlan253 O 162.105.151.0/24 [110/2] via 162.105. 254.14,00:23:00 Vlan2 S 162.105.239.0/25 [1/0] via Vlan252 S 162.105.125.128/26 [1/0]via Vlan3
B.
O 162.105.153 0/24 [110/2]via 162. 105.254.8, 00:23:00 Vlan2 O 162.105.152.0/24 [110/2] via 162.105.254.14, 00:23:00, Vlan2 C 162.105. 157.0/24 is directly connected, 00:23:00 POS3/0 C 162.105.156.0/24 is directly conncted, 00:23:00, FastEthernet2/5 O E1 162.105.144.0/25 [110/30] via 162.105.253.249,00:23:00Vlan253 O 162.105.151.0/24 [110/2]via 162. 105.254.14.00:23:00. Vlan2 S 162.105.239.0/25 [1/0]via 202.112.41.6 S 162.105.125.128/26 [1/0] via 202.112.7.1
C.
O 162.105.153.0/24 [110/2] via 162. 105.254.8,00:23:00 Vlan2 O 162.105.152.0/24 [110/2] via 162.105.254.14 00:23:00 Vlan2 C 162.105.157.0/24 is directly connected Vian157 C 162.105.156.0/24 is directy connected Vlan30 O E1 162.105.144.0/25 [110/30] via 162. 105.253.249, 00:23:00,Vlan253 O 162.105.151.0/24[110/2] via 162.105. 254.14,00:23:00 Vlan2 S 162.105.239.0/25 [10]via 202112.41.6 S 162.105.125.128/26 [1/0] via 202.112.7.1
D.
O 162.105.153.0/24 [170/2] via 162. 105.254.8,00:23:00 Vlan2 O 162.105.152.0/24 [170/2] via 162.105.254.14 00:23:00 Vlan2 C 162.105.157.0/24 is directly connected Vian157 C 162.105.156.0/24 is directy connected Vlan30 O E1 162.105.144.0/25 [170/30] via 162. 105.253.249, 00:23:00,Vlan253 O 162.105.151.0/24[170/2] via 162.105. 254.14,00:23:00 Vlan2 S 162.105.239.0/25 [1/0]via 202112.41.6 S 162.105.125.128/26 [1/0] via 202.112.7.1
【单选题】下列是一台第三层交换机的部分路由表, 表中的路由信息完全正确的是
A.
O 162.105.153.0/24 [100/2] via 162.105. 254.8, 00:23:00 Vlan2O E1 162.105.144.0/25 [100/30]via 162. 105.253.249,00:23:10,Vlan253C 162.105.157.0/24 is drectly conmected VIan157C 162.105.156.0/24isis directy connected, Vlan30S 162.105.239 0/25 [1/0]via202.112.41.6S 162.105.125.128/26 [1/0] via 202.112.7.1
B.
O 162.105.153.0/24 [110/2] via 162.105. 254.8,00:23:00 Vlan2O E1 162.105.144.0/25 [110/30]via 162 105.253.249 00:23:00Vlan253
【单选题】下列是一台第三层交换机的部分路由表，其中管理距离为缺省值，正确的路由信息是______。
A.
O 162.105.153.0/24[110/2]via 162.105.254.8，00:23:00，Vlan2 O \r\nE1162.105.144.0/25[110/30]via 162.105.253.249，00:23:00，Vlan253 \r\nC162.105.157.0/24 is directly connected.via 162.105.157.1 \r\nC162.105.156.0/24 is directly connected，via 162.105.156.1 \r\nS162.105.239.0/25[1/0]via 202.112.41.6 S162.105.125.128/26[1/0]via \r\n202.112.7.1
B.
O 162.105.153.0/24[120/2]via 162.105.254.8，00:23:00，Vlan2 O \r\nE1162.105.144.0/25[120/30]via 162.105.253.249，00:23:00，Vlan253 \r\nC162.105.157.0/24 is directly connected，Vlanl57 C162.105.156.0/24 \r\nis directly connected，Vlan30 S162.105.239.0/25[1/0] via \r\n202.112.41.6 S162.105.125.128/26[1/0] via 202.112.7.1
C.
162.105.153.0/24[110/2]via 162.105.254.8，00:23:00，Vlan2 O E1 \r\n162.105.144.0/25[110/30]via 162.105.253.249，00:23:00，Vlan253 \r\nC162.105.157.0/24 is directly connected，Vlan157 C162.105.156.0/24 \r\nis directly connected，Vlan30 S162.105.239.0/25[1/0]via \r\n202.112.41.6 S 162.105.125.128/26[1/0]via 202.112.7.0
D.
O 162.105.153.0/24[110/2]via 162.105.254.8，00:23:00，Vlan2 O \r\nE1162.105.144.0/25[110/30]via 162.105.253.249，00:23:00，Vlan253 \r\nC162.105.157.0/24 is directly connected，Vlanl57 C162.105.156.0/24 \r\nis directly connected，Vlan30 S162.105.2390/25[1/0]via \r\n202.112.41.6 S 162.105.125.128/26[1/0]via 202.112.7.1
【简答题】在电气系统中,元器件的驱动部分和被驱动部分表示方法有 3 种 : ( )、( )和( )。
【简答题】下列Cisco第三层交换机的路由表信息中，路由表项全部正确的是（ ）。
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