Enjoy New Benefit! Ruston Electronics is now offering a 25% discount on TVs, DVDs, and washing machines, and more to employees of Ruston Company. To take advantage of this special deal, simply pick up a Ruston discount voucher from the human resources office. This voucher can be used at any authorized retailer. Employee identifications may be required. Please call the Ruston Electronics customer service department at 256-356-5867 with any questions.

A . PVST+reduces the CPU cycles for all the switches in the network B . PVST+automatically selects the root bridge location,to provide optimiz… C . PVST+allow the root switch location to be optimized per vlan. D . PVST+supports Layer 3 load balancing without loops.

A . A特征 B . B优点 C . C利益 D . D证据

A . TCP packet sizes can be optimized by the router so there is no IPSec or AAL5 padding. B . The local loop is a dedicated connection for a single subscriber to the DSLAM.  C . Access to the WAN media uses a poll/response mechanism so no two subscribers transmit at the same time.  D . There are no distance requirements from the Central Office (CO).&e

A . Higher transfer speeds  B . Increased power consumption with Solid State  C . Increased bandwidth  D . Cost per MB

A . the profit-oriented scientists. B . the founders of the new awards. C . the achievement-based system. D . peer-review-led research.

A . 正确 B . 错误

A . Higher transfer speeds B . Increased power consumption with Solid State C . Increased bandwidth D . Cost per MB

A．flying at night B．walking in the desert C．watching the changes in the scenery

A．Antigua B．The Blue Mountains C．Jamaica D．Guyana

A．though they are receiving a lot of decibels of sound in fact B．because it doses not have any negative effect C．because they do not have to tolerate the noise around them D．even though it is sometimes unpleasant hearing strange sounds

是 否

A. the visiting of museums B. for museum visiting C. visiting the museums D. to visit the museums

Some of the major illnesses and conditions that aspirin or aspirin-like drugs might help prevent are. Alzheimer's disease, diabetes-related heart disease, heart attack, cancer and antibiotic-induced hearing loss. The passage mainly discusses the effects of A．health. B．aspirin. C．hearing loss. D．heart attack.

Now you all know - at least I hope you do what course you are registered for. As soon as you've had tea, we'd like you to report to our secretary, Miss Mathews - you'll find her in the office on the first floor. She'll give you your course number and timetable and explain where the various classrooms are, what books you'll need, and whether they are available in the library. Besides, she'll give you detailed information about how you are scored. If books are not available in the library, you can try in the bookstore. Our book store is next to the reception in the main hall. It's open from 9 to 10 a.m. daily. Now about meals breakfast 8: 30 to 9, full evening meal 6: 30 to 8: 30 in the dining room. I' m afraid you have to make your own arrangements about lunch, but the cafeteria in the canteen is open from 10 to 4 for sandwiches and coffee. Classes finish at 5. If you look at the notice board in the main hall, you'll see that we have arranged a variety of evening entertainments for you, and Saturday excursions. Anyone who wants to go on an excursion should inform. the secretary, as soon as possible as the coach company need to know numbers. I hope you'll all have a very enjoyable time, and make a lot of new friends. Margery Hooper is _______. A．at a music conference B．on a holiday course C．at a holiday resort D．on a training course

A．妙巴黎 B．露华浓 C．美宝莲 D．贝玲妃 E．魅可 F．安娜苏

A．无聊的 B．激动的 C．令人兴奋的