Being a single parent, there is no way for her to _______ the time and energy she has

______ a single mom made things even more difficult.

A、Be

B、Being

C、Is

D、Was

A single vessel being towed alongside shall exhibit ______.

A.one all-round white light

B.sidelights and a stern light

C.only the outboard sidelight and a stern light

D.a masthead light，sidelights，and a stern light

A.For being unsble

B.Unable

C.Because unable

D.Without able

has been configured with two vlans,and route-on-a-stick is being configured on the router for inter-vlan routing.A trunk is configured to connect the switch to the router.What is the minimum number of router subinterfaces that are required for all the vlans to communicate？（）

A. one

B. three

C. two

D. zero

h has been configured with two vlans，and route-on-a-stick is being configured on the router for inter-vlan routing. A trunk is configured to connect the switch to the router.What is the minimum number of router subinterfaces that are required for all the vlans to communicate？（）

A.one

B.three

C.two

D.zero

A. It would be a completely new way of making a human being

B.It, biologically, refers to any organism whose genetic information is identical to that of its parent organism from which it is created

C.Cloning will create a baby from a single cell, from a single person

D.It is favored widely

py places of our own，far from the confines of our families. We saw this moving away as a chance to strike out on our own，to grow，to spread out wings and experience freedom. At the same time，we regarded this independence as temporary-the thing to do until we found the perfect mate and married. Over the years，many millions of people have made this passage from one family to another，with just a brief，often nervous interval of independence in between. But recently，more and more people have begun to challenge the concept that living together is better than living alone. Being single is now accepted as an alternative lifestyle-one that is natural，rewarding，and complete. In fact，being single has become almost fashionable.

It is said in th．e passage that when the economy slides ()．

A． men would choose working women as their marriage partners

B． more women would get married to seek financial security

C． even working women would worry about their marriages

D． more people would prefer to remain single for the time being

A. It protects signals against node failures between rings.

B. It protects signals against node failure within a single ring.

C. It allows for traffic to be preempted when a ring switch occurs.

D. Traffic can be dropped and continued at interconnecting nodes.

E. It protects preemptible traffic from being dropped when a ring switch occurs.