3.31 换了（继续添加狗）

davidleezone

LZ  确认一下···是不是这个篇

SOME of the most basic organisms are smarter than we thought. Rather than moving about randomly, amoebas and plankton employ sophisticated strategies to look for food and might travel in a way that optimises their foraging.

Biophysicists have long tried to explain how creatures of all sizes search for food. However, single-celled organisms such as bacteria seem to move in no particular direction in their search.

To investigate, Liang Li and Edward Cox at Princeton University
studied the movements of amoebas (Dictyostelium) in a Petri dish, recording the paths travelled by 12 amoebas, including every turn and movement straight ahead, for 8 to 10 hours per amoeba.
Immediately after an amoeba turned right, it was twice as likely to turn left as right again, and vice versa, they told a meeting of the American Physical Society meeting in Denver, Colorado, last week. This suggests that the cells have a rudimentary memory, being able to remember the last direction they had just turned in, says Robert Austin, a biophysicist at Princeton who was not involved in the study.

Such memories might be laid down because of the way the cell moves. To turn, an amoeba extends part of its body in the preferred direction, which creates a scar made of protein down that side of the cell. The scar might make the cell temporarily more likely to move in the opposite direction. For the amoeba, the pay-off is that it avoids travelling in circles and hence can search a larger area.

ttss

是这篇，太厉害了！
这是什么时候考过的？

davidleezone

网上的一篇文章  
忽然忘了解脱   发现的~~~忽然忘了解脱  考古NIU

ttss

太强大了~~~真的~~~
不过我看到文章已经想不起具体题目了。。囧
应该考了道主旨题

ttss

真的仅仅是结构稍有不同，我特清楚的记得那个Liang Li出现在第一段第三行左右的位置。。很靠前，但是意思就是这篇！

jessie10

LZ 这片plankton文章和考试的时候是一模一样的吗

ttss

见我上面的回复~不是一摸一样，GMAC调整成了那种比较平整的结构，两段。

stucash

LZ啊，你看看数狗那个老头那题， 你说的以后每月加2/3of1%，你还记得是什么的1%？是62岁退休每月拿的那笔钱的1%， 还是一直到65岁，老头本来每个月拿的钱的1%?

因为最后说的那个350 (320,310,wutever)是说老头65岁之后每个月拿的钱,还是说, 因为62没退, 所以每个月多拿的那一点点+他本来的工资？

因为如果是65岁退休之后拿的钱，信息就真的缺失了。。。但后来那个NN考到这个题，回忆出来的跟你一模一样， 所以不知道信息到底缺了什么。

TT童鞋， 现身给点线索吧。

ttss

老头……退休……我没有遇到这题啊@_@

stucash

我的错，肯定是我记错了。。