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When humans have a heart attack, heart muscles die after being cut off from their blood supply. But what if the heart could grow new muscle to replace the dead tissue? Some amphibians can regrow body parts, even entire limbs. But humans and other hig
Lesson 84 Part Ⅰ Lesson 84 Part Ⅰ Warming-up Exercises Numbers: Numbers in News Items 1. A record number of shares, almost _____ were traded Tuesday on the New York Stock Exchange. 2. Trading was
Broadcast: May 7, 2003 By Nancy Steinbach This is the VOA Special English Health Report. People who travel on long trips should know about a condition that can develop deep inside the legs. This condi
Exercise has always been seen as a major mood booster and stress reliever: It boosts endorphins and can help distract you from whatever's on your mind, which is why it feels good to walk it off when you're frustrated. 人们一直以来都认为,运动
This Doctor Is Trying To Stop Heart Attacks In Their Tracks play pause stop mute unmute max volume 00:0005:27repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash plug
32 Yes, 这是现在的小学生都会的单词。但是大学 英语 专业的人有时也搞错,例如,对于对方的否定句表示赞同时,很多时候,很多人仍旧会回答yes,而不会说no. 英语 中表示同意的词很多,如