鹅属于草食家禽，其对饲料中的粗纤维的利用率比其他家禽高，因此其饲养中粗纤维的含量高低

How many             do you have?[ ]

A. pencil        

B. pencils        

C. pen

He said that his bike _____ stolen and he ____ telephone the police.

A．is; would have to

B．has; will have to

C．has been; will have got to

D．had been; would have to

储蓄扩大的直接效果就是投资需求扩大和消费需求减少。( )

如图1 所示，某校园网使用l0Gbps 的POS 技术与CERNET 相连，POS 接口的帧格式使用SDH。路由协议的选择方案是校园网采用OSPF 动态路由协议，校园网与CERNET的连接使用静态路由协议。另外，还要求在路由器R3 上配置一个loopback 接口，接口的IP 地址为192.167.150.1。

请阅读以下R3 的配置信息，并补充【6】，一【10】空白处的配置命令或参数，按题目要求完成路由器的配置。 Router-R3 #configure teminal Router-R3 (canfig)# Rauter-R3 (config)#interface pos3/1 Router-R3 (conflg-if)#descript..ion To CERNET Router-R3 (config-if)#bandwidth eses Routes-R3 (conlig-i0#ip address 222.112.37.1 255.255.255.252 【6】- Routes-R3 (config-if)#crc 32 Routes-R3 (config-ifj#【7】 一配置帧格式 Routes-R3 (config-if)#na ip directed-broadcast Routes-R3 (config-i}#pos flag s1s0 2 Routes-R3 (config-ill#no shutdown Routes-R3 (config-ifl#exit Routes-R3 (canfig)#interface loopback 0Router-R3 (conflg-i介#ip address 192.167.150.1Router-R3 (config-i0#no ip route-cache【8】Router-R3 (config-if)#no ip_mroute-cacheKouter-R3 (config-i 匀#exitRouter-R3 (config)#router ospf 63Router-R3 (config-router)#network 167.112.0.0 【9】Router-R3 (config-router)#redistribute connected metric-type 1 subnets一-area 0Router-R3 (config-router)#area 0 range 167.112.0.0Router-R3 (con,tg-router)#exit【10】Router-R3 (config)#Router-R3 (config)#ip route 0.0.0.0 0.0.0.0 222.112.37.2Router-R3 (config)#exitRouter-R3#write

简述对食物的代谢反应的作用机理。