专业术语—口腔生理学术语P2(英文详解)

pH - a measure of how acid or alkali a solution is. As the pH gets lower, the solution is more acid. At a pH of 7 the solution is neither acid nor alkali. pH is the inverse of the logarithm of the con

发表于:2019-01-03 / 阅读(59) / 评论(0)

医务英语

EXPLORATIONS - Global Positioning System

EXPLORATIONS - Global Positioning System By Paul Thompson Broadcast: Wednesday, May 05, 2004 (MUSIC) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Phoebe Zimmermann with the VOA Special Engli

发表于:2019-01-07 / 阅读(72) / 评论(0)

Explorations

SSS 2009-04-06

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a

发表于:2019-01-08 / 阅读(82) / 评论(0)

Scientific American(四)月

NPR 2009-08-02

Iran's state-run television station says three American tourists have been arrested after entering the country from northern Iraq without permission. The State Department is looking into the reports, as NPR's Allison Keyes reports. The three were re

发表于:2019-01-08 / 阅读(61) / 评论(0)

2009年NPR美国国家公共电台8月

阿肯色州的持枪教师越来越普遍

Gun-Carrying Teachers Becoming More Common in Arkansas The number of teachers carrying guns in and around schools in the American state of Arkansas is growing. One of those teachers is Dale Cresswell. He works in the Heber Springs School District, ju

发表于:2019-01-22 / 阅读(238) / 评论(0)

2018年VOA慢速英语(十二)月

New Initiative to Strengthen Africa's Red Cross & Red Cresce

By Joe De Capua A new initiative has been launched to strengthen the Red Cross and Red Crescent Societies in Africa, making them better able to respond to emergencies. The local humanitarian groups ar

发表于:2019-01-31 / 阅读(91) / 评论(0)

VOA2004（下）--新闻盘点

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