单词:residual spray
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CNN Radio, I am Mitchell Right. Our cover story were getting in the first report of how things went in today's spring court hearing over the president's healthcare law. CNN's Lisa reports this sounds ominous first arguments. Day one focused on a tech
Spray Detects Hard-to-Find Tumors Surgeons may soon have a new tool to help locate early-stage cancerous growths; a spray that turns fluorescent green when it comes into contact with tumors. The spray is clear, but contains a non-toxic dye that almos
As Uganda looks to eliminate malaria, the country is engaged in a debate(辩论会) over the use of chemicals such as DDT in some of the world's most malarial regions. In the district of Apac in northern Uganda, the risk of malaria is higher than any
Autumn dusk, floating patches of dead leaves. Piece of the falling yellow leaves are always people feel sad and depressed. Fu Guo Dang Qi autumn slightly leisurely in my mind the layers of memories! Looked forward to, read the. Like an elegant lilies