单词：interhelix
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U.S. President George Bush is launching one of the biggest conservation efforts in the world. He is designating large tracts of the Pacific as national monuments - meaning they are protected from commercial fishing, mining and other uses. President
VOA标准英语2009年(一月)
State Department Establishes Office for Religious Engagement WASHINGTON Secretary of State John Kerry has appointed a professor of Christian ethics as the first director of the State Departments Office of Faith-Based Community Initiatives. The new of
VOA常速英语2013年(八月)
SHENZHEN, June 18 (Xinhua) -- China established its first national gene bank on Friday in south China's city of Shenzhen with the support of the Beijing Genomics Institute (BGI), officials said. With the establishment of the National Gene Bank in She
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China and the Dominican Republic have annouced the establishment of diplomatic ties following the signing of a joint communique in Beijing. A key part highlighted in the communique is the Dominican Republic's pledge to adhere to the one-China princip
2018CRI中国国际广播电台
China and the Dominican Republic have announced the establishment of diplomatic ties following the signing of a joint communiqu in Beijing. A key part highlighted in the communiqu is the Dominican Republic's pledge to adhere to the one-China principl
2018CRI中国国际广播电台
By calculating how old the rocks are where we find these ancient compasses, we can figure out how long ago the magnetized parts were locked in. That tells us which direction was magnetic north tens of thousands of years ago. Surprisingly, its not alw
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