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Human Waste Killing Caribbean Coral In the first documented case of a human pathogen infecting a marine species, U.S. scientists say a bacterium in untreated human sewage is killing coral along the Florida coast and in the Caribbean Sea. The finding

发表于:2019-01-11 / 阅读(135) / 评论(0) 分类 VOA标准英语2011年(八月)

An international team of researchers looking for the cause of severe bacterial epidemics has deciphered the genome of group A streptococcus, a normally harmless sore throat pathogen that occasionally turns deadly. Experts say the breakthrough could s

发表于:2019-01-13 / 阅读(185) / 评论(0) 分类 VOA标准英语2010年(一月)

本期内容: American scientists announced that they had cloned the Zika virus. This is an important stage in producing a safe version of the pathogen to be used in a vaccine against the mosquito-borne illness, which has been linked to brain defor

发表于:2019-03-02 / 阅读(177) / 评论(0) 分类 夏说英语新闻晨读
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afp statistics report
air intake guard mechanism
amphipyra surnia
anti-venene
arithmetic encoder
aryballo
baling
cargo charter flight
claculation options
closed ecological system
cocoa red
colmore
compensating torque
compliance voltage
concentrated pipe
dehydrohetisine
Dsu, data service unit.
eight-foot-thick
electronics recycling
enallypropymal
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fearfulest
Festuca changduensis
field personnel
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from the egg to the apple s
fructus lycii sinensis
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Go Daddy
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Lord Chamberlain (of the Household)
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microassembly techniques
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Munagala
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on the inside
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