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[00:04.00]For Questions 6-10,you'll hear a research report on Wildlife Protection [00:10.84]While you listen, [00:14.29]complete the sentences or answer the questions. [00:18.76]Use not more than 3 words for each answer. [00:23.51]You now have 25 sec
Science and technology. 科技。 Flu research. 流感研究。 How to make bird flu fly, part one. 让禽流感飞起来,第一部分。 The first of two controversial research papers is published. 充满争议的两篇研究论文的其中之一已
A: My doctor says that I need a blood test. B: I can help you with that. Just have a seat and roll up your left sleeve. A: What are you taking my blood for? B: Your doctor has requested a check of your white blood count. A: What information does that
WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo
Science and technology 科学技术 Flu 流感 How to make bird flu fly, part one 怎样让禽流感在人间传播:步骤一 The first of two controversial research papers is published 两个关于禽流感研究的论文一直备受争议,现在其