文章列表

• 1.【英语时差8,16】吸入药物优于注射药物
• A scientist is working on an alternative to injections of medications such as insulin. It comes in the form of microscopic plastic beads that you inha...
• 2.【英语时差8,16】如何计算停车时间与距离-上
• As you are driving along, some part of your mind is probably constantly estimating how much space you would need to brake if the car in front of you s...
• 3.【英语时差8,16】注射流感疫苗-下
• But what wasnt known was that the re seems to be an added benefit to getting a flu shot in terms of warding off heart problems. The data, in fact, are...
• 4.【英语时差8,16】南北两极-上
• Say youre a polar explorer and youve just reached the north pole. The huskies are yapping, the cameras are ready and youre just about to unfurl the fl...
• 5.【英语时差8,16】注射流感疫苗-上
• Researchers conducting a study of hospital stays for over two hundred and eighty six thousand older folks found something interesting in the ir data.T...
• 6.【英语时差8,16】山洞人-下
• There are several reasons. First, much evidence of prehistoric civilization is found in caves because the natural shelter helps preserve artifacts. Th...
• 7.【英语时差8,16】走路为什么摆臂？-下
• But although it happens passively, arm swinging plays an important role in making your stride more efficient. It does this by counterbalancing your to...
• 8.【英语时差8,16】山洞人-上
• From the bestselling novel Clan of the Cave Bear to the 1981 movie Caveman, pop-culture tends to misrepresent prehistoric people as cave dwelling brut...
• 9.【英语时差8,16】走路为什么摆臂？-上
• Have you ever wondered why we swing our arms while walking? Its a curious phenomenon, since arms dont play an obvious role in locomotion. You can stil...
• 10.【英语时差8,16】热到底是什么？-下
• You could do this all day and the nails would never stop growing hot. If heat were a liquid, there would have to be an infinite amount of it even in a...