科學(xué)60秒:
2011 is the International Year of Chemistry. So scientists at the national meeting of the American Chemical Society in Anaheim ___1___. (Or a beaker.) And they celebrated as only chemists can—by...
科學(xué)60秒:多年擔(dān)憂終應(yīng)驗(yàn)
“The type of accident that is occurring in Japan is known as the ___1___: loss of off-site AC power—power lines are down—and then a subsequent failure of emergency power on-site, the diesel ge...
社會(huì):美國失業(yè)率攀升至25年來最高峰
社會(huì):美國失業(yè)率攀升至25年來最高峰The Labor Department is reporting the nation’s unemployment rate has now hit 8. 1%. That is the highest level we’ve seen in more than 25 years. The report stat...
經(jīng)濟(jì)危機(jī)沖擊出口貿(mào)易 (1)
全球經(jīng)濟(jì)危機(jī)影響下,出口貿(mào)易何去何從?The economic crisis is claiming another victim: world trade. Last month the World Bank predicted a 2% decrease this year -- the largest drop since the ninete...