普-屈二氏反应

英语听力文摘 English Digest 562、寒冷的晒伤！

A Cool Sunburn A listener from Ontario, California wrote to A Moment of Science with a question her sons had asked her. The boys wondered why is it that when you get sunburned you often feel chilled. It really does seem like a contradiction: youve be

发表于:2018-12-31 / 阅读(37) / 评论(0)

英语听力文摘 English Digest

2007年VOA标准英语-Mideast Quartet Partners Spar over Engaging Syr

By David Gollust State Department 02 February 2007 The international diplomatic Quartet on the Middle East Friday endorsed an upcoming three-way U.S., Palestinian and Israeli meeting aimed at reopening discussion of final-status issues of the peace p

发表于:2019-01-16 / 阅读(75) / 评论(0)

2007年VOA标准英语（二月）

英语听力文摘 English Digest 475、打针一定会痛吗？

Microneedles 微针疗法 Female: From flu vaccin es to tetanus booster s , injections are a must in modern medicine. But do they always have to make you say Ouch? Male: Eh,no? F: No,indeed.If new microneedle technology is successful, we may soon hav

发表于:2019-01-26 / 阅读(41) / 评论(0)

英语听力文摘 English Digest

PBS高端访谈:墨西哥城正面临日益严峻的用水危机

PBS高端访谈:墨西哥城正面临日益严峻的用水危机GWEN IFILL: Violent protests continued in Mexico today. Demonstrators clashed with police in Acapulco, as anger mounted over the disappearance of 43 students. Late last week, three men d

发表于:2019-01-27 / 阅读(53) / 评论(0)

PBS访谈环境系列

VOA标准英语2013--Russia’s Reaction Against Gay Rights Starts in St Petersburg

Russias Reaction Against Gay Rights Starts in St Petersburg MOSCOW Russia has become the worldwide target of gay activists for its new law banning gay propaganda. St. Petersburg is the birthplace of Russias reaction against gay rights. In St. Petersb

发表于:2019-02-01 / 阅读(63) / 评论(0)

VOA常速英语2013年(九月)

英语听力文摘 English Digest 267、火是什么？

What Is Fire? 火是物质燃烧过程中散发出光和热的现象，是能量释放的一种方式。火焰分为焰心、中焰和外焰，温度由内向外依次增高。燃烧过程必须有可燃物、燃点温度、氧化剂三项并存，缺一

发表于:2019-03-09 / 阅读(233) / 评论(0)

英语听力文摘 English Digest

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