Counttothreeandrip（撕）itoffasfastasyoucan-thisishowmostpeopleremoveaband-aid（创可贴）．（33）___fastyoudoit，it'sstillgoingtobepainful．That'sforsure．Orisit？AgroupofAmericanscientistsfromBoston

　　Count to three and rip（撕） it off as fast as you can-this is how most people remove a band-aid（创可贴）．（33）___ fast you do it，it's still going to be painful．That's for sure．Or is it？

　　A group of American scientists from Boston have just developed a band-aid that can be taken off without causing pain，reports the journal Proceedings of the National Academy of Sciences．

　　Traditional band-aids are supposed to break apart （34）___ the skin meets the glue，which is what makes taking them off so painful．But the new band-aid has an extra layer that sits （35）___ the glue and the backing．When you tear off the band-aid，you remove the backing and middle layers，（36）___（leave） the glue behind．The glue （37）___ then be simply rubbed off with one's fingers or left to fall off naturally．Importantly，this process is pain-free．

　　This is not the first time scientists （38）___（try） to solve this problem．But methods they tried in the past led to band-aids that were （39）___（sticky） and therefore didn't stay on for long．

　　The Boston study was first aimed at helping babies （40）___ skin is too delicate for standard band-aids．But adults with sensitive skin might also enjoy the benefits．