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标题: 六级练习2013.03.03 [打印本页]

作者: Rebecca949    时间: 2013-3-4 10:40     标题: 六级练习2013.03.03

[audio]http://sound.yywz123.com/tingbbs/cet6/cet620130303.mp3[/audio]




If blood vessels are damaged, people can suffer a gangrene infection. Sometimes the only way doctors can treat an injury like this is to remove frostbitten areas like fingers and toes.如果人体血管受损,就可能会导致坏疽感染.医生有时处理这种伤害的唯一办法就是切除该冻伤部位,例如手或脚趾.
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作者: susan.sui    时间: 2013-3-5 12:14

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