GWD17 - 11 19 34

[Michael1020]

Q11:
Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover.

Which of the following, if true, most seriously undermines the argument?

A. Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.
B. It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.
C. The number of snow geese taken by hunters each year has grown every year for several years.
D. As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.
E. In the snow goose’s winter habitats, the goose faces no significant natural predation.
Answer: B

想請問一下B的邏輯思維是如何？
以及為什麼C不行？


Q19:
A diet high in saturated fats increases a person’s risk of developing heart disease. Regular consumption of red wine reduces that risk. Per-capita consumption of saturated fats is currently about the same in France as in the United States, but there is less heart disease there than in the United States because consumption of red wine is higher in France. The difference in regular red-wine consumption has been narrowing, but no similar convergence in heart-disease rates has occurred.

Which of the following, if true, most helps to account for the lack of convergence noted above?

A. Consumption of saturated fats is related more strongly to the growth of fatty deposits on artery walls, which reduce blood flow to the heart, than it is to heart disease directly.
B. Over the past 30 years, per-capita consumption of saturated fats has remained essentially unchanged in the United States but has increased somewhat in France.
C. Reports of the health benefits of red wine have led many people in the United States to drink red wine regularly.
D. Cigarette smoking, which can also contribute to heart disease, is only slightly more common in France than in the United States.
E. Regular consumption of red wine is declining dramatically among young adults in France, and heart disease typically does not manifest itself until middle age.
Answer: E

第一個想問的是這題是要解釋哪邊的差異？
是說為什麼紅酒消耗量越趨近相同，但是為什麼heart disease發生率卻沒縮小嗎？

Q34:
During the month of May, crabs arrive on Delaware’s beaches to lay eggs. Certain shorebirds depend on these eggs for food during their annual spring migration to their northern breeding grounds. Delaware’s crab population has declined recently. This decline, however, poses no serious threat to the migrating shorebird populations: by remaining longer in Delaware, the birds will be able to eat enough crab eggs to allow them to complete their migration.

Which of the following, if true, most seriously weakens the argument?

A. No other food available to the birds on Delaware’s beaches is as nutritious and accessible as are crab eggs.
B. The decline in the number of crabs on Delaware’s beaches is due to the harvesting of crabs by humans.
C. There are more crabs on Delaware’s beaches than in any other area that the migrating birds pass through.
D. The crabs do not conceal their eggs.
E. The earlier in the season the shorebirds complete their migration, the more likely they are to breed successfully.
Answer: E

看完前四個以刪去法刪掉，自然選到E，是發生在時間點的問題嗎？
還是說E指出未來shorebirds的數量增加，所以就無足夠的crab eggs？

問題積很多，麻煩大家了！^^

[維尼]

11與34題先前已有討論囉 :)
要麻煩你將19題另開一篇文章進行討論
一篇三題會造成討論以及收集上的困擾
感謝!
(本篇鎖定)