[00:04.57]Excitement fills the early morning air as you arrive at learn to recognize and name each part of the parachute. [00:19.17]You also learn what each part does. [00:22.05]The excitement builds as your teacher describes each stetp it of the jum

发表于:2018-12-03 / 阅读(69) / 评论(0) 分类 美国英语听力80篇

UNIT 8 GOING SHOPPING Lesson 15 Part ⅠWarming-up Exercises Lesson 15 Part Ⅰ Warming-up Exercises A . Numbers: Prices 1 . A : Oh, Duane, how do you like this chair? B : It's soft and comfor

发表于:2018-12-03 / 阅读(51) / 评论(0) 分类 英语听力入门 (全四册)

Transmission Facilities Transmission facilities provide the communication paths that carry user and network control information between nodes in a network. In general, transmission facilities consist

发表于:2019-01-03 / 阅读(49) / 评论(0) 分类 电信英语

I-MAC isonchronous media access controller IDN integrated digital network IEC International Electrotechnical Commission Impairments Impairments is the (e.g., transmission channel and signal impairment

发表于:2019-01-03 / 阅读(49) / 评论(0) 分类 电信英语

True, he had not the qualities of social humor or wit, but he was an example of indefatigable industry. 实际上,他天生没有幽默感,也不会说俏皮话,可他是这一行业不辞辛苦劳作的典范。 He came to his studies every mo

发表于:2019-01-10 / 阅读(78) / 评论(0) 分类 美国语文第六册

Shake it off and step up 《井中老骡》抖掉泥土,迈步向上 A parable is told of a farmer who owned an old mule. The mule fell into the farmer's well. The farmer heard the mule 'braying'or whatever mules do when they fall into wells. After

发表于:2019-02-23 / 阅读(25) / 评论(0) 分类 英语PK台