But researchers this year came up with a new method that makes flexible, realistic ears out of real cells. Those cells come from rats and cows, and they form a collagen gel that can take the shape of any mold. When placed in a mold of a human ear—a mold assembled using a 3-D printer—the gel forms an ear in less than an hour. The artificial ear then just needs a few days growing in nutrients before it's ready to be implanted in a subject.
包括加拿大在内的北美地区票房收入达到了111亿美元，同比去年上涨8%，这主要要归功于包括《侏罗纪公园》（本土票房6.52亿美元）、《复仇者联盟：奥创纪元》（4.59亿美元）、《头脑特工队》（3.56亿美元）等几部大卖影片。
416The eighth grader's candidacy is also about overcoming age discrimination, which he sees as a barrier to equality, and he says his quest for the top state spot is no joke.
112Before becoming Germany's top trading partner, China was Germany's largest trading market in Asia. Germany has been China's top trading partner in the European Union for the last 2 years.
437Just as shocking was the 59 percent rise in whooping cough, a disease that was all but wiped out more than half a century ago by comprehensive immunisation programs.
890第四步 提醒所有人“你们其实是蠢货”
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