Why are parenting concepts deeply rooted in the majority of families in that country?

A . multipart-to-multipoint EVC （E-LAN） B . hub spoke EVC （E-Tree） C . point to point EVC （E-Line） D . rooted multipoint EVC （E-Tree） E . point-to-multipoint EVC （E-Tree）

A . I'm OK, thanks B . She is well, thanks C . They are both fine, thanks D . He is well, thank

A . rooted multipoint EVC （E-Tree） B . point-to-point EVC （E-Line） C . point-to-multipoint EVC （E-Tree） D . hub spoke EVC （E-Tree） E . multipoint-to-multipoint EVC （E-LAN）

A . Each OSPF area requires a loopback interface to be configured. B . Areas may be assigned any number from 0 to 65535. C . Area 0 is called the backbone area. D . Hierarchical OSPF networks do not require multiple areas. E . Multiple OSPF areas must connect to area 0. F . Single area OSPF networks must be configured in area 1.

A . inexperienced B . unexperienced C . imexperienced D . disexperienced

A . If a packet is sent to a multicast group address, the multicast frame contains the source multicast address. B . A router does not have to be a member of a multicast group to recei ve multicast data. C . A router must be a member of a multicast group to send to the group. D . A router does not have to be a member of a multicast group to send to the group. E . If a packet is sent to a multicast group address, all members of the multic ast group will receive it. F . A router must be a member of a multicast group to receive multicast data.

A、The volcano lover B、In America C、On photography

A．Y B．N C．NG

A.obedient B.independent C.responsible D.cooperative

A．They can't afford to buy a house. B．They haven't got their children yet. C．They have to look after their parents. D．They are used to living with their parents.

A．skip B．scan C．abandon D．overlook

A．It's hard to keep classrooms balanced while fulfilling parents' wishes. B．They don't want to be surpassed by a specific teacher in terms of popularity. C．A specific teacher's popularity is not relevant to his/her real ability of teaching. D．A specific teacher only suits perfectly one particular child's educational needs.

A．the difficulty of handling the spyware. B．the concern of violating their children's privacy. C．worries of being discovered by their children. D．no easy access to the spyware.

A．Peace B．Compromise C．Concord D．Unison

A．Because his only son was right there under the ruins． B．Because he heard his son crying for help right under the ruins． C．Because he remembered the promise he had made to his son． D．Because his son promised to be with him forever．

A．hearing from B．hear from C．hearing of D．hear of