ChaseDream

标题: [求助]天山-4-14 [打印本页]

作者: neverback 时间: 2004-12-17 23:24
标题: [求助]天山-4-14

The milk of many mammals contains cannabinoids, substances that are known to
stimulate certain receptors in the brain. To investigate the function of cannabinoids,
researchers injected newborn mice with a chemical that is known to block cannabinoids
from reaching their receptors in the brain. The injected mice showed far less interest in
feeding than normal newborn mice do. Therefore, cannabinoids probably function to
stimulate the appetite.
Which of the following is an assumption on which the argument depends?
A. Newborn mice do not normally ingest any substance other than their mothers’
milk.
B. Cannabinoids are the only substances in mammals’ milk that stimulate the
appetite.
C. The mothers of newborn mice do not normally make any effort to encourage their
babies to feed.
D. The milk of mammals would be less nutritious if it did not contain cannabinoids.
E. The chemical that blocks cannabinoids from stimulating their brain receptors does
not independently inhibit the appetite

MINE B

ANS E

不明白啊~~~~~~~~~~~~~~~~~````

作者: kooka 时间: 2004-12-18 16:17

http://forum.chasedream.com/dispbbs.asp?boardID=24&ID=74754&page=1

作者: neverback 时间: 2004-12-18 19:18
哦

作者: ycgxx 时间: 2007-9-8 12:58

奇怪，为什么我的天山的这个题号的题目是

T-4-Q14 GWD-13-38

Frobisher, a sixteenth-century English explorer, had soil samples from Canada’s Kodlunarn
Island examined for gold content. Because high gold content was reported, Elizabeth I funded two mining expeditions. Neither expedition found any gold there. Modern analysis of the island’s soil indicates a very low gold content. Thus the methods used to determine the gold content of Frobisher’s samples must have been inaccurate. （MY answer is D）

Which of the following is an assumption on which the argument depends?

The gold content of the soil on Kodlunarn
Island is much lower today than it was in the sixteenth century.
The two mining expeditions funded by Elizabeth I did not mine the same part of Kodlunarn
Island.
The methods used to assess gold content of the soil samples provided by Frobisher were different from those generally used in the sixteenth century.
Frobisher did not have soil samples from any other Canadian island examined for gold content.
Gold was not added to the soil samples collected by Frobisher before the samples were examined.

作者: lj690335847 时间: 2009-9-3 00:49
B一定错的题目中给出了注射的东西能够阻塞cannabinoids B选项即使指出它不是唯一的也不能说明什么，因为其他的能促使喂奶的没被阻塞啊，只有c被阻塞了。 E对的，他说明这种化学物质并不是独立作用的即它直接作用是不喂奶了，而是有所依赖的即间接的作用！！！

作者: gg99mx 时间: 2009-9-3 06:38

T-4-Q14 GWD-13-38

我跟楼主题号不同
同问四楼
谢谢

[此贴子已经被作者于2009/9/3 6:40:37编辑过]

作者: love+1 时间: 2009-9-3 07:40
我是新来的，想问一下啊，很多帖子多是天山啥啥的，天山是啥题呀

欢迎光临 ChaseDream (https://forum.chasedream.com/)