什么是CPR(1)
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- 四级试题
美德
是哥哥Virtue Sweet day,so cool,so calm,so bright! The bridal of the earth and sky- The dew shall weep thy fall to-night; For thou must die. Sweet rose,whose hue angry and brave, B...
上什么学校拿什么证(1)
去美国留学不仅仅是学习知识而已,最终你会得到一张证书-文凭,有什么不同的文凭吗?Today, we answer a question from Martin in Mexico City. He asks about the kinds of degrees that students can earn at...
手机新用途(1)
手机除了打打电话,发发短信,还能作什么?Wireless phones are connecting the developing world at a rate of about 1 million new phones each day. And with them come important new uses for the technol
了解太阳风(1)
太阳风可不是一股风哦,到底是什么,看吧!The so-called northern and southern lights glow and shimmer colorfully in what 19th century Scottish poet W.E. Aytoun described as streamers shooting all n...