Ví dụ . Một lý do khác tại sao tôi đồng ý với tuyên bố trên là tôi tin rằng A là tốt hơn so với B. Ví dụ . Nó có lẽ sẽ không được xử lý quá tử tế với ý tưởng rằng B không phải là quan trọng. B. | The Official Guide for GMAT Review 12th Edition 26. Guillemots are birds of Arctic regions. They feed on fish that gather beneath thin sheets of floating ice and they nest on nearby land. Guillemots need 80 consecutive snow-free days in a year to raise their chicks so until average temperatures in the Arctic began to rise recently the guillemots range was limited to the southernmost Arctic coast. Therefore if the warming continues the guillemots range will probably be enlarged by being extended northward along the coast. Which of the following if true most seriously weakens the argument A Even if the warming trend continues there will still be years in which guillemot chicks are killed by an unusually early snow. B If the Arctic warming continues guillemots current predators are likely to succeed in extending their own range farther north. C Guillemots nest in coastal areas where temperatures are generally higher than in inland areas. D If the Arctic warming continues much of the thin ice in the southern Arctic will disappear. E The fish that guillemots eat are currently preyed on by a wider variety of predators in the southernmost Arctic regions than they are farther north. Argument Evaluation Situation In the southern Arctic guillemots find their prey beneath thin sheets of ice nest nearby and require 80 snow-free days to raise their young. A warming trend means that their range may be enlarged by extending northward along the coast. Reasoning Which point weakens the argument about the enlargement of the guillemots range How could the birds move northward and simultaneously not enlarge their range Consider the assumption implied by the idea of enlargement. If the guillemots lost their southern habitat then their northward move would be a displacement rather than an enlargement. If their source of food was no longer available to them in the southern Arctic then they would abandon that area as part of their range. A An exceptional year is not an argument against an
