- UID
- 1528074
- 在线时间
- 小时
- 注册时间
- 2022-9-22
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
1. 修桥
一个地方要修桥。修桥的钱要从民众募集。但是这个桥只有一部分居民经常使用，另一部分住在偏远地方的人用不上。所以向所有人募集钱是不公平的。Assumption
F：修桥要全部民众出钱。
P：这个桥只有一部分居民经常使用，另一部分住在偏远地方的人用不上。
C：向所有人募集钱是不公平的
Assumption: 按使用桥的频率来收费。
2. 珍稀白鲸
有一种珍稀白鲸 死亡率很高 而且原因是因为collision（忘了怎么拼了就是撞击那个单词）with ships 所以就调低了在某些白鲸密集区域船只航行速度的limit 果然白鲸数量上升了 说明政策有效 问还需要知道什么条件。
F：珍稀白鲸会因为撞船而死。调低船只航行速度，白鲸数量上升。
C：调低航行速度能够减少白鲸撞船死的概率
类型：因果相关性推理
条件：船只速度快慢和致死率有关，开得慢致死率低，开得快致死率高。
3. 三文鱼和小虾米
The economy around Lake Paqua depends on fishing of the lake's landlocked salmon population. In recent years, scarcity of food for salmon there has caused a decline in both the number and the size of the adult salmon in the lake. As a result, the region's revenues from salmon fishing have declined significantly. To remedy this situation, officials plan to introduce shrimp, which can serve as a food source for adult salmon, into Lake Paqua.
Which of the following, if true, most seriously calls into question the plan's chances for success?
(A) Salmon is not a popular food among residents of the Lake Paqua region.
(B) Tourists coming to fish for sport generate more income for residents of the Lake Paqua region than does commercial fishing.
(C) The shrimp to be introduced into Lake Paqua are of a variety that is too small to be harvested for human consumption.
(D) The primary food for both shrimp and juvenile salmon is plankton, which is not abundant in Lake Paqua.
(E) Fishing regulations prohibit people from keeping any salmon they have caught in Lake Paqua that are smaller than a certain minimum size.
F：三文鱼食物减少，导致成年三文鱼数量和体积减少。
P：引进成年三文鱼的食物虾
C：能够提升三文鱼数量
类型：解决方案，问削弱
分析：方案带来其它负面影响：例如虾会抢占幼年三文鱼的食物
选D |
|
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2022-10-29 10:55:39
