开个贴讨论本月洛基

cdlxhmn

开个贴讨论本月萝机，大家有问题直接跟帖吧。

冷咖啡

占个位置先，哈哈

乔小桥

搬个板凳坐着~

v20AND750

俺也来了~~

bevivian

每張貼都能發現冷咖啡先生的蹤影
一看到你那個成功post就好想笑~簡直是CD的形象代言阿

ann110726

同意，那是你本人吗？

grlover51

25. GWD-23-Q39
In Gandania, where the government has a monopoly on tobacco sales, the incidence of smoking-related health problems has risen steadily for the last twenty years. The health secretary recently proposed a series of laws aimed at curtailing tobacco use in Gandania. Profits from tobacco sales, however, account for ten percent of Gandania’s annual revenues. Therefore, Gandania cannot afford to institute the proposed laws.
Which of the following, if true, most seriously weakens the argument?
A.    All health care in Gandania is government-funded.
B.    Implementing the proposed laws is not likely to cause a significant increase in the amount of tobacco Gandania exports.
C.    The percentage of revenue Gandania receives from tobacco sales has remained steady in recent years.
D.    rofits from tobacco sales far surpass any other single source of revenue for the Gandanian government.
E.    No government official in Gandania has ever previously proposed laws aimed at curtailing tobacco use.

cdlxhmn

那个鲸鱼发生的好像是这个

V1 from Rayzero
还有到将whale 发声的作用的题。具体记不清了 但是有个词不认识导致这道题后面只能猜。 对不住大家不记得那个词长什么样子了 只记得是nm开头的貌似适合。我记得我选的答案是 whale在immigration 在 warmer water 里发出这种声音用来辨别方向。（不确定）
感谢yaqi_svw提供背景资料
鲸类发声： 　北极露脊鲸 (Mysticete)所发的声音是典型的低频哼吟声和尖叫声，主要的频率约为20～1000赫。海豚发声的频率为10多赫到20万赫，所发出的声音有两类：一是定位声，为短促的尖叫声；二是用以通讯的信号声,似连续的“哨声”。研究结果表明,海豚具有回声定位的能力。海豚头部具有瓣膜和气囊系统，通过这类系统将声波放射出去。当超声信号遇到目标时，形成低频的反射信号，再由耳或头部的其他器官接收，构成完善的声呐系统。
座头鲸（以及一些蓝鲸）那复杂而令人难忘的歌声据信主要目的是用来择偶（见下节），其它鲸类比较简单的声音则全年不变。齿海豚（包括虎鲸）更能够使用声纳系统定位（本质上是发出超声波束）来精确探测物体的大小以及属性，须鲸没有这种能力。另外，不像鲨鱼那样：鲸的嗅觉系统并未高度发展。在水生环境能见度一般也很低，只有声音仍然能够很好传播，人耳可听范围内的声音对鲸来说是导航信号。例如，水深或是前方存在一个大的障碍物可以被须鲸发出的大噪声探测到。

cdlxhmn

25. GWD-23-Q39
In Gandania, where the government has a monopoly on tobacco sales, the incidence of smoking-related health problems has risen steadily for the last twenty years. The health secretary recently proposed a series of laws aimed at curtailing tobacco use in Gandania. Profits from tobacco sales, however, account for ten percent of Gandania’s annual revenues. Therefore, Gandania cannot afford to institute the proposed laws.
Which of the following, if true, most seriously weakens the argument?
A.    All health care in Gandania is government-funded.
B.    Implementing the proposed laws is not likely to cause a significant increase in the amount of tobacco Gandania exports.
C.    The percentage of revenue Gandania receives from tobacco sales has remained steady in recent years.
D.    rofits from tobacco sales far surpass any other single source of revenue for the Gandanian government.
E.    No government official in Gandania has ever previously proposed laws aimed at curtailing tobacco use.

-- by 会员 grlover51 (2010/2/4 1:50:03)

这个题选A

乔小桥

同意，那是你本人吗？

-- by 会员 ann110726 (2010/2/4 1:43:56)

哈哈，是他好多年前的本人呢、、额，我讨打了。。。