cr jj 10

melissa_gao

(10)增加某鸟数量的方法

记得有道逻辑：一种鸟到一个地方栖息，因为这里的蟹都在沙滩上产卵，所以越来越多的鸟在这里聚集，成了游客们的景观。当地政府为了吸引游客，为了吸引更多的鸟，把沙滩扩大，这样就会有更多的蛋，鸟就会更多。问weaken。

记得E是说因为地方小，密度高，所以被埋的蛋就容易被蟹不小心弄出来。

我觉得这个和GWD还是OG的一道题很像啊？但是找不到了 。。。有NN想的起来不。。

h5641

Q27:

    

Mayor: 
Migrating shorebirds stop at our beach just to feed on horseshoe-crab
eggs, a phenomenon that attracts tourists. 
To bring more tourists, the town council plans to undertake a beach
reclamation project to double the area available to crabs for nesting.

    

 

    

Birdwatcher:  Without a high density of crabs on a beach,
migrating shorebirds will go hungry because shorebirds only eat eggs that a
crab happens to uncover when it is digging its own nest.

    

 

    

Which of the following, if true, would
provide the mayor with the strongest counter to the birdwatcher’s objection?

    

 

    

        
1. Every year a certain percentage of crabs are caught by
        fishermen as bait for eel traps.

        
2. Horseshoe crabs are so prolific that given favorable circumstances
        their numbers increase rapidly.

        
3. On average, tourists who come to the town in order to watch
        birds spend more money there than tourists who come for other purposes.

        
4. The additional land made available by the reclamation project
        will give migrating shorebirds more space.

        
5. Some of the migrating shorebirds make only one stop during
        their migration form South America to Canada.

melissa_gao

thanks so much

melissa_gao

不好意思 我的再问一下

这个答案是啥？B 我怎么没在GWD里找到呢。。。

h5641

以下是引用melissa_gao在2009-5-21 16:52:00的发言：

不好意思 我的再问一下

这个答案是啥？B 我怎么没在GWD里找到呢。。。

嗯嗯  是B 

我的在GWD 10.   我也找了一會兒...

bighaha

所以此题是GWD原题，只是问题不一样了？

h5641

嗯嗯  我也是恍然大悟

pinkyywhy1

答案是什么？

xiangmin225

这样看来，机经上的这道题就应该选那项表达只有当沙滩小，蟹蛋密度才高容易被挖出来供这种海鸟吃的选项了吧