文章列表

• 1.时差N小时 你对高原反应了解多少?(上)
• Anyone who has vacationed in the higher elevations of Colorado, such as Vail and Estes Park, will tell you altitude sickness can be a real problem. 任...
• 2.时差N小时 如何判断自己是不是双关节?(下)
• Connective tissues also form the tendons that join the bones to the muscles. 结缔组织同样也组成了连接肌肉与骨头的肌腱。 Ligaments and tendons usually ...
• 3.时差N小时 如何判断自己是不是双关节?(上)
• Can you bend your thumb backwards until it touches your wrist? 你是否能向后弯曲大拇指，让它触碰到手腕部位吗？ If you join your hands behind your back,...
• 4.时差N小时 你对火柴了解多少?(下)
• It sounds like we have a chemical reaction thing going? 听起来我们还涉及到化学知识？ That's right. 没错。 This starts a chemical reaction that uses th...
• 5.时差N小时 你对火柴了解多少?(上)
• There are two different types of matches: safety matches and strike-anywhere matches. 目前有两种不同的火柴：安全火柴，还有一种随便划一下都可点燃的火柴...
• 6.时差N小时 黄金是黄色的吗?(下)
• If most gold jewelry is an alloy, why is some white and some yellow? 如果大多数黄金首饰是合金的话，为什么有的是白色有的是黄色呢？ The final appearance...
• 7.时差N小时 黄金是黄色的吗?(上)
• Many people associate the metal gold with the color gold. 很多人认为金子应该是金色。 But, some gold jewelry is not golden at all: its white. 但一些黄...
• 8.时差N小时 月球表面的记号为何不消失?(下)
• Leave your Earth pan outside. Take the moon pan inside and place a cardboard box over the top of it, weighted down with something heavy. 把代表地球的...
• 9.时差N小时 月球表面的记号为何不消失?(上)
• In 1969 when Neil Armstrong said Thats one small step, he made a lasting impression. 1969年，当时阿姆斯特朗的名言人类一小步给人留下了难以磨灭的印象。 ...
• 10.时差N小时 为什么生病的时候容易脱水?(下)
• Two key ingredients of metabolic reactions are water and oxygen. 新陈代谢作用的两大关键因素是水和氧。 Increased metabolism uses more water and also ma...