文章列表

• 1.【英语时差8,16】抗体如何预防艾滋病？
• One way our bodies resist disease is by producing a variety of chemicals called antibodies, which destroy the virus or bacterium causing the disease. ...
• 2.【英语时差8,16】聪明的章鱼
• Chimps do it. Dolphins do it. Even crows that want to catch fish do it. But an octopus? Yes, it seems the smartest member of the invertebrate world ha...
• 3.【英语时差8,16】信念6条
• You may have heard of the Five Pillars of Islam, but have you heard of the Six Articles of Faith? The Five Pillars of Islam the profession of faith, p...
• 4.【英语时差8,16】录像机如何记录B
• But heres a mystery: When you press pause on the VCR, the screen doesnt go blank. Instead, you get a frozen image. Remember, you need a changing magne...
• 5.【英语时差8,16】耳石是什么？
• Ear rocks, also known as otoliths, are tiny pebbles of calcium carbonate in our inner ear that help keep us balanced. Theyre located deep inside the i...
• 6.【英语时差8,16】录像机如何记录
• Although audio tapes and video tapes look different, theyre based on the same principles. Each has a roll of magnetic material which slides past the s...
• 7.【英语时差8,16】怎样处理核废料？B
• But there are problems with each of these ideas. For example, it would be difficult to monitor nuclear waste under the ocean floor. Waste buried deep ...
• 8.【英语时差8,16】怎样处理核废料？
• Whats the best way to dispose of nuclear waste? And is it true that scientists have considered sending it into space? Good question. To answer the sec...
• 9.【英语时差8,16】骨质疏松B
• While osteoporosis is treatable, its not curable, so early detection really is key. As it is, though, about one in two women, and one in four men over...
• 10.【英语时差8,16】什么是疱疹？B
• In fact, recurrence of these painful cold sores is very common because once you have the virus, you never get rid of it. The latent virus can be trigg...