艾滋病新發(fā)現(xiàn)(1)
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美文聽寫:人生之筆
ive adj. 試驗(yàn)性質(zhì)的,暫時(shí)的,猶豫不決的Pen of Life Suppose someone gave you a pen - a sealed, solid-colored pen. You couldn't see how much ink it had. It might run dry after the first...
醫(yī)學(xué):艾滋病新疫苗的功效
醫(yī)學(xué):艾滋病新疫苗的功效Researchers say a vaccine to prevent HIV infection is showing some modest results. This one was done in Thailand, it was paid for by the U.S. army. What makes this vaccine...
艾滋病新發(fā)現(xiàn)(2)
研究者發(fā)現(xiàn)婦女在傳染問題上可能比專家過去想像中的負(fù)有更多的責(zé)任...How does Vinod Mishra explain these findings? More women could be entering marriage already infected, he says. Or they could be ge...
WTO的歷史(1)
關(guān)于世界貿(mào)易組織WTO的一段歷史A question from Vietnam. Listener Nguyen Minh Tan wants to know more about the World Trade Organization and its history. The World Trade Organization came into exist...