个人看了一下，下面的指控基本成立，除非……发表在新浪网上的那篇文章，是有人冒充方舟子。全文引用于下：
方舟子惊人写作又一例
方舟子惊人写作又一例
http://www.rainbowplan.org/bbs/topic.php?topic=12774&select=&forum=1
英文作者Ron Knott，见于网页：
http://www.mcs.surrey.ac.uk/Personal/R.Knott/Fibonacci/fibnat.html中文作者方舟子，发表在《科学世界》2004年9月刊，见于网页
http://magazine.oursci.org/200404/0409.htm
(Vitamin-max.com注：此文地址目前为 http://magazine.oursci.org/magazine/200404/0409.htm)
http://tech.sina.com.cn/other/2004-09-03/1145418307.shtml作者为方是民（方舟子）的写作：
“假定你有一雄一雌一对刚出生的兔子，它们在长到一个月大小时开始交配，在第二月结束时，雌兔子产下另一对兔子，过了一个月后它们也开始繁殖，如此这般持续下去。每只雌兔在开始繁殖时每月都产下一对兔子，假定没有兔子死亡，在一年后总共会有多少对兔子？
“在一月底，最初的一对兔子交配，但是还只有1对兔子；在二月底，雌兔产下一对兔子，共有2对兔子；在三月底，最老的雌兔产下第二对兔子，共有3对兔子；在四月底，最老的雌兔产下第三对兔子，两个月前生的雌兔产下一对兔子，共有5对兔子；……”
（见http://magazine.oursci.org/200404/0409.htm）如下网页的英文内容：
http://www.mcs.surrey.ac.uk/Personal/R.Knott/Fibonacci/fibnat.html#Rabbits“Suppose a newly-born pair of rabbits, one male, one female, are put in a field. Rabbits are able to mate at the age of one month so that at the end of its second month a female can produce another pair of rabbits. Suppose that our rabbits never die and that the female always produces one new pair (one male, one female) every month from the second month on. The puzzle that Fibonacci posed was…
“How many pairs will there be in one year?
“At the end of the first month, they mate, but there is still one only 1 pair.
At the end of the second month the female produces a new pair, so now there are 2 pairs of rabbits in the field.
At the end of the third month, the original female produces a second pair, making 3 pairs in all in the field.
At the end of the fourth month, the original female has produced yet another new pair, the female born two months ago produces her first pair also, making 5 pairs. ”文章来源： 虹桥科教论坛，http://www.rainbowplan.org/bbs/topic.php?topic=12774&select=&forum=1
Good job.