4.there are too many rabbits in somewhere australia---too bad for its ecological system. so some govenment agent advocates to kill rabbits by putting poison on grass rabbits feed on. but some others say that this will also poison billy, an endangered species. Weaken my key: too many rabbits will eat up most of foods billy depends on.
5. City officer: five year ago we changed something in hospital A. today we see the positive result--less cost per paitient in A than in other hospital unchanged. so we should apply same changes to the others. Assumption: hospital A does not move those patients in severe condition(more cost) to the others.
10.Enviromental Organization想 preserve land from residential development. 通过从农民手中将土地买过来的方式,来保护那些有可能被开发商使用的土地。但是这个计划不和逻辑。[That plan is ill-conceived] 因为农民总是将土地卖给出价高的人。而开发商显然出价比较高。ON THE OTHER HAND,[农民NEVER SELL LAND 如果农场是保持活力的(VIABLE,这句话有点搞)]。而土地要能够耕种,就必须要现代化。但是农民自己无法实现现在化。所以,环境保护组织应该才有一个SENSIBLE的政策:帮助农民完成现代化,这样才可以保护土地不被开发商利用。
11.Children resistence bottle drug , few children use such kind drug, so it is wise for company to advertise the adult use bottle instead of Children use.
12.some foreign species of fish is introduced into an american lake. This new fish is killing a native fish. Some local govt. agency wants to save this local fish. So the agency publishes a small card that has a photo of the new predator fish. This card is given to the local fishermen. What is the assumption of the passage ?
13. Country X, earns more than 10% through tobacco sales. A govt agencey wants to institute a plan to curb the sale so that people are more healthier. But this plan will not work beacuse 10% of govt revenues come from sale of tobacco. Weaken this ?