bill0703

有趣，谢谢

iamwilliam

9 J* G5 {* y$ u- C; y
' b6 k: n  @: z: X$ C: itvb now,tvbnow,bttvbmany thanks ......

aznurdad

the monkey one is pathetic

sman3340857

了解一下~~增长知识拉~呵呵

ljllyy

thanks~~

intec

wah sai.. nice to knw.. thx ya!!

cq999zy1987

最后一个比较无敌啊

gohbm

多谢楼主无敌分享！

jen198053

16 為甚麼心臟不會生癌？
+ U5 z8 n5 [* D+ Y5.39.217.77:8898胃、肝、大腸、睪丸都會生癌，但為甚麼沒聽過有心臟癌呢？原因在於心臟以外的細胞都具有增殖機能，即使受了傷，只要過一段時間就能痊癒，這是因為細胞增殖使傷口癒合，然而心臟的細胞並不會增殖。癌細胞會持續增殖，接著破壞周圍的組織，就是因為心臟細胞不會增殖的關係，所以癌細胞是無法侵襲心臟。
( k1 j' _6 G1 ^% J+ O
1 Q9 Z, A, _5 Z5.39.217.77:8898in fact, the heart is made of muscle, so it can develop cancer too, normally is the cardiac muscle itself, if it's benign, it's called myxoma; if it's malignant, it's called angisarcoma

lirunke

又学到野啦!

nail332

nice

apple333

apple333

apple333

:angry: