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Paul Rothemund:DNA魔法

Paul Rothemund正在编写一种特殊的「密码」以使DNA能自己排列成星形、笑脸及其他图案。您会为之感到震惊，但您所看到的只是分子自我排列组合的小型表演，它实际上揭示了未来制造出各种东西

发表于:2018-12-09 / 阅读(486) / 评论(0)

TED公开课:头脑游戏

VOA标准英语 Algeria's Bouteflika Re-Elected to 3rd Term

Algerian President Abdelaziz Bouteflika has been re-elected in a vote boycotted by some opposition parties who were upset by changes to the electoral law allowing him to run for a third consecutive term. Algerian Pres. Abdelaziz Bouteflika waves as

发表于:2019-01-13 / 阅读(568) / 评论(0)

VOA标准英语2009年(四月)

In Algeria, Popular Protests Still Simmer Beneath Surface

Algeria is simmering with the same toxic mix of economic and political discontent that has exploded into revolts across the Arab world. But another effort to stage an anti-government protest in front of the main post office in downtown Algiers failed

发表于:2019-01-14 / 阅读(465) / 评论(0)

VOA标准英语2011年(三月)

2007年VOA标准英语-Algeria Bombing Death Toll Now 33

By Challiss McDonough Cairo 12 April 2007 Algeria's interior minister says the death toll from Wednesday's double car bombing in Algiers has risen to at least 33, with more than 220 people wounded. The attack has awakened fears that the country could

发表于:2019-01-16 / 阅读(501) / 评论(0)

2007年VOA标准英语（四月）

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