加州大火追踪报道(1)
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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:数学好不好是天生的
Some people may just be born with a talent for math. I mean, we’ve known that practicing your times tables makes for better multiplication, but new research shows that our ___1___ sense of numbe...
科学60秒:欧洲祖先原来很晚才学会生火的
Imagine life without fire. A lot of huddling for warmth. The ___1___ was that humans could make and control fire when they first migrated north to colder Europe, about a million years ago. But n...
加州大火追踪报道(1)
接下来是对加州大火难免的追踪报道This facility in Del Mar, north of San Diego, in normal times is a fairgrounds and race track. Now it is temporary home to some 2,000 people, and even more evacuat