了解一下智齒 (2)
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自由呼吸:設(shè)計(jì)爐灶的藝術(shù)(2)
自由呼吸:設(shè)計(jì)爐灶的藝術(shù)Hints:AprovechoCottage GroveOregonLorenaDean Still deforestationEvery year Aprovecho holds a "stove camp" at its testing station in Cottage Grove, Oregon. Engineers, inven...
你洗手了嗎?(2)
洗手是預(yù)防和防止傳染病蔓延的有效方法,你知道多洗手可以換回多少的生命嗎?The experts say that hand washing is especially important before and after preparing food, before eating and after using th...
美首位女性經(jīng)濟(jì)學(xué)大獎獲得者(2)
哈佛大學(xué)的蘇珊獲得今年的美國經(jīng)濟(jì)學(xué)最高獎項(xiàng)克拉克獎,并且是歷史上首位女性獲獎?wù)逴ne of the real-world situations that she has studied is government auctions. Auctions can be used to sell something ...
美利堅(jiān)求學(xué)記之-酒(2)
美國合法的飲酒年齡是21歲,而作為美國的大學(xué)生還是要遵守一系列的飲酒規(guī)定At the University of Oklahoma, new policies went into effect after a 19-year-old student died in 2004. He had been drinking h...