又想起两道道逻辑题 4.6的

chaserJing

有一套题我觉得像是GWD的变体，就是说什么一个鸟在它们迁徙钱要在一个沙滩上要吃一种乌龟的蛋，有很多游客来看，于是这里的政府为了提高旅游收入，吸引更多鸟和游客过来围观这一幕，决定要扩大这个乌龟生蛋的范围，即扩大这个沙滩吧，求削弱：
我记得这道题我选的的答案貌似是一个跟密度有关的，好像是说地方大了，生蛋的密度就小了，从而会让这些鸟找不到这些蛋什么的，（所以它们在这就不会像以前那样待）
还有一个是说，为了减少大气中CO2的含量所以决定在XX洋上加大量的去种一种什么海藻，这个海藻会吸收CO2，并且它们死了以后就沉到海底变什么固体之类的吧。求削弱：
我记得我选的是一个说这些植物头一年一旦变多了会吸收过多海洋里一种的营养，从而减少下一年这些植物生存的可能

chaserJing

对了，想起那道几经里数学题，就是说一个圆的圆心是（-h,-k）,半径是2，问圆上最近的一点和X=4的距离是不是=3，DS题貌似
反正思路是这样的：最近的一点既是过圆心做平行于X轴的线，这条线在圆有两个交点，与X=4近的那边的点就是整个圆里X=4最近的点
它们的距离是：4-(-h+2）=2+h
我记得（1）好像就是H=1，（2）是一个关于K的。
反正答案有且只与H有关。所以若条件如上的话，选A

lzj1209

太感谢LZ了！！

忽然忘了解脱

汗。。。。。。。。这两题CR貌似我见过。。。。。。。。这就去挖。。。。。。。。。

忽然忘了解脱

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?

Every year a certain percentage of crabs are caught by fishermen as bait for eel traps.
Horseshoe crabs are so prolific that given favorable circumstances their numbers increase rapidly.
On average, tourists who come to the town in order to watch birds spend more money there than tourists who come for other purposes.
The additional land made available by the reclamation project will give migrating shorebirds more space.
Some of the migrating shorebirds make only one stop during their migration form South America to Canada.
  Answer: B

LZ看看是这题么？

忽然忘了解脱

还有这个~~~海中生物与二氧化碳
Scientists are discussing ways to remove excess carbon dioxide from the atmosphere by increasing the amount that is absorbed by plant life.  One plan to accomplish this is to establish giant floating seaweed farms in the oceans.  When the seaweed plants die, they will be disposed of by being burned for fuel.

Which of the following, if true, would indicate the most serious weakness in the plan above?

Some areas of ocean in the Southern Hemisphere do not contain sufficient nutrients to support large seaweed farms.
When a seaweed plant is burned, it releases an amount of carbon dioxide comparable to the amount it has absorbed in its lifetime.
Even if seaweed farms prove effective, some people will be reluctant to switch to this new fuel.
Each year about seven billion tons of carbon dioxide are released into the atmosphere but only about five billion tons are absorbed by plant life.
Seaweed farms would make more money by farming seaweed to sell as nutritional supplements than by farming seaweed to sell as fuel.
  Answer: B

忽然忘了解脱

LZ.。。。。。。。。现身吧。。。。。。。。。。。。求确认！！！！

chaserJing

是的是的，就是选项有些不大一样，题目应该是这样

忽然忘了解脱

是的是的，就是选项有些不大一样，题目应该是这样

-- by 会员 chaserJing (2010/4/10 15:32:55)

谢谢LZ


终于不辜负冷大人对我的期望了。。。。。。。。。。。吼吼……………………

chaserJing

是这样的，我考试中第一题没有给出BIRDWATCHER的话，而答案我选的那个选项就是BIRDWATCHER说的话
第二道题好像不太一样，但是大概是这个意思，也是说要种一种什么水草，还有括号说明这种生物，但是选项不一样，没有你给的题目中的那个B选项，因为我记得这道题在练习中我貌似也做到过