加州大火追踪报道(1)
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科学60秒:影响广告效益的神奇因素
A lot of people watch political debates on TV. Which means great opportunities for advertisers. But an ad for an island getaway or ___1___ cuisine will only sound ___2___ if the viewer agrees wit...
科学60秒:智能手机的妙用
Smart phones can provide music, movie times, bus schedules. They can even make phone calls! And now, they might help ____1____ fuel use while driving. That is, if enough are used in a system call...
科学60秒:足球运动员的"隐形杀手"
On February 17 former Chicago Bears football player Dave Duerson killed himself with a gun shot to the chest. Doctors later found that Duerson had a condition in common with more than 20 other ...
美元疲软是为何?(1)
美元一直处于疲软的状态,原因何在?The dollar has been weakening against several major currencies. One euro is currently worth about one dollar forty cents. A British pound is worth over two dolla...