用户使用PPPoE方式上网，当用户下线时，客户端发起结束会话的报_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

用户使用PPPoE方式上网，当用户下线时，客户端发起结束会话的报文是（）。

A.PADR

B.PADT

C.PADM

D.PADS

答案

参考答案：B

阅读理解

请阅读左栏所给的相关信息，然后与右栏的的信息相匹配。并把答案填在相应题目的大题位置上。

小题1: I am a professional gardener. I work in a big company in Pagewood. I would like to do some gardening in our neighborhood for old people on weekends.
小题2: I haven’t found a job since my parents passed away months ago. I miss them so much. I would like to help old people in Ryde in their homes to make them happy. But I don’t have a driver license.
小题3: I am a book lover from New York. I am healthy and strong enough to do some volunteer work about books on weekends. I have a clean driver license and a car.
小题4: I have a red car and I am generally free on Sundays. I would like to help elderly or disabled people because I am a patient and humorous person and I can understand them well.
小题5: I’m a student, aged 22 in Rozelle College. I am quite outgoing and I like talking with all kinds of people. I have time to do some volunteer jobs on weekdays.

A．Book Collector in New York on Weekends
We need someone who can collect donated books and give away them to our sorting area. You must have a car and driver license and be able to lift small boxes of books.

B．Bus Driver in South Ryde on Thursdays or Fridays
You will drive a bus for elderly people. You will pick them up, drive them to the parks, beaches, etc. and back to the center by lunch time. You must have a bus license. You need good communication skills and know the area well.

C．Shopping Volunteer on Sundays, 10:00am~3:30 pm
You will help senior or disabled customers with their shopping in Spring Shopping Center. You should have your own car. You should be a patient, humorous and caring person.

D．Visitor in Ryde Areas on Weekdays

You will visit housebound(不能离家的) people in their own homes and chat with them. You should have patience and know senior people well. You will meet new people and enjoy cheering them up.
E. Bookkeeper in Sutherland at 10:00am~2:00pm, on Weekdays
You will help keep records on Quickbooks and answer telephones. You should speak English well.
F. Gardener in Pagewood on Weekends
You will tidy and weed(除草) a back yard, mow(割草) a small lawn(草坪). You should be good at gardening. You will work in a beautiful environment, meet new people and help others.
G. Neighborhood Aid in Rozelle on Weekdays
You will provide help to senior or disabled people by visiting their homes, shopping, paying bills, making telephone calls, gardening. You must be more than 18 years old and can communicate with other people well.

问答题

简述我国电子商务中物流体系的建立模式。