今天终于去尝试GMAT了，考的不是很理想,不过自己也没好好复习,在考虑准备2战. 考前两星期开始注意CD上的JJ,数学上收益不少，想回来做贡献，可惜记性不好，记不住太多，只能尽量回忆吧.
今天的数学不难，碰到了不少JJ, 第一题就是问下面哪些数是由两个质数相加的，很简单. 凑下就好了. 但是最后第2道出现了什么抛物线,篱笆的这道,不是很明白该怎么做
1),K,N为整数, S为集合,S=K^N,问K值
1. S中两个元素差为1
2. S中一元素的值范围在1/4到1之间
2), 说什么X大于等于2,Y大于等于3,Y小于等于X-9,然后问相交的面积
67, 73, 120, 129, 142, 147, 152, 154, 168, ......
语文逻辑碰到好几道,可惜答案也不是很确定
1)有说年轻时容易生气的人，年老了更容易得心脏说，问支持的话
2)说在1980-1986年，美元变的更容易去买，因为出口应该会上去,但是结果上升的不多，问解释
3)说用那种杀虫剂杀虫,应该由LOCAL决定，而不是国家决定，因为每个地方的各种条件都不一样，问削弱.
4)几种粮食的消费会增加,但是土地却会边少,政府要投资更多的钱来提高，问评价.
5) Q40: Mice that have been given morphine are very likely to develop blood poisoning because bacteria that normally reside in the intestine typically respond to morphine by migrating into the bloodstream. However, when mice are given both morphine and the new drug naltrexone, blood poisoning is much less frequent, although it does still occur. These results provide support for researchers’ prediction that naltrexone will turn out to be toxic to certain types of bacteria. Which of the following, if discovered to be true, would most seriously weaken the support for the researchers’ prediction? A. After being administered to mice, naltrexone does not pass from the bloodstream into the intestine. B. Naltrexone inhibits morphine from triggering the migration of intestinal bacteria into the bloodstream. C. Mice that have been given naltrexone but not morphine have no greater risk of developing blood poisoning than do mice that have not been given either substance. D. The increased risk of blood poisoning is not the only harmful effect on mice of being given morphine. E. Conditions other than the presence of intestinal bacteria in the bloodstream can cause blood poisoning in mice. 答案是b(他把这道选项的位置换了!) 阅读都是JJ里看到过的，不过那道显微镜的，看的不是很懂,可能对于学理科的人来说会简单很多. 阅读都是JJ里看到过的，不过那道显微镜的，看的不是很懂,可能对于学理科的人来说会简单很多.
Q40:
Mice that have been given morphine are very likely to develop blood poisoning because bacteria that normally reside in the intestine typically respond to morphine by migrating into the bloodstream. However, when mice are given both morphine and the new drug naltrexone, blood poisoning is much less frequent, although it does still occur. These results provide support for researchers’ prediction that naltrexone will turn out to be toxic to certain types of bacteria.
Which of the following, if discovered to be true, would most seriously weaken the support for the researchers’ prediction?
A. After being administered to mice, naltrexone does not pass from the bloodstream into the intestine.
B. Naltrexone inhibits morphine from triggering the migration of intestinal bacteria into the bloodstream.
C. Mice that have been given naltrexone but not morphine have no greater risk of developing blood poisoning than do mice that have not been given either substance.
D. The increased risk of blood poisoning is not the only harmful effect on mice of being given morphine.
E. Conditions other than the presence of intestinal bacteria in the bloodstream can cause blood poisoning in mice.
答案是b(他把这道选项的位置换了!)
阅读都是JJ里看到过的，不过那道显微镜的，看的不是很懂,可能对于学理科的人来说会简单很多.
阅读都是JJ里看到过的，不过那道显微镜的，看的不是很懂,可能对于学理科的人来说会简单很多.
Q40:
Mice that have been given morphine are very likely to develop blood poisoning because bacteria that normally reside in the intestine typically respond to morphine by migrating into the bloodstream. However, when mice are given both morphine and the new drug naltrexone, blood poisoning is much less frequent, although it does still occur. These results provide support for researchers’ prediction that naltrexone will turn out to be toxic to certain types of bacteria.
Which of the following, if discovered to be true, would most seriously weaken the support for the researchers’ prediction?
A. After being administered to mice, naltrexone does not pass from the bloodstream into the intestine.
B. Naltrexone inhibits morphine from triggering the migration of intestinal bacteria into the bloodstream.
C. Mice that have been given naltrexone but not morphine have no greater risk of developing blood poisoning than do mice that have not been given either substance.
D. The increased risk of blood poisoning is not the only harmful effect on mice of being given morphine.
E. Conditions other than the presence of intestinal bacteria in the bloodstream can cause blood poisoning in mice.
答案是b(他把这道选项的位置换了!)
阅读都是JJ里看到过的，不过那道显微镜的，看的不是很懂,可能对于学理科的人来说会简单很多.
阅读都是JJ里看到过的，不过那道显微镜的，看的不是很懂,可能对于学理科的人来说会简单很多.
感谢分享!:-)
谢谢
能问一下 这题的答案吗? 1),K,N为整数, S为集合,S=K^N,问K值 1. S中两个元素差为1 2. S中一元素的值范围在1/4到1之间 我明天就考好着急?这道jj不会呀
1),K,N为整数, S为集合,S=K^N,问K值
1. S中两个元素差为1
2. S中一元素的值范围在1/4到1之间
我明天就考好着急?这道jj不会呀
if k is a constant, go for A; if the problem does not mention it, E is better. Good luck!
1),K,N为整数, S为集合,S=K^N,问K值
1. S中两个元素差为1
2. S中一元素的值范围在1/4到1之间
我选的是A
谢谢帮助
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