22. (28829-!-item-!-188;#058&003748) In the late 1980s, the population of sea otters in the North Pacific began to decline. There are two plausible explanations for the decline: predation, possibly by killer whales, or disease. Of these two, disease is the more likely, since a concurrent sharp decline in populations of seals and sea lions is believed to have been caused by disease, and diseases that infect these creatures are likely to be able to infect sea otters also. Which of the following, if true, most seriously weakens the reasoning? (A) Killer whales in the North Pacific usually prey on seals and sea lions but will, when this food source is scarce, seek out other prey. D) Following the decline in the population of the sea otters, there was an increase in the population of sea urchins, which are sea otters' main food source. 請教一下 答案是A 沒啥問題 但我想知道D錯哪 因為題目說有2可能原因 (1)predation (2)disease 題目尾巴說是因為disease 所以反駁他不是因為disease是predation 這是A的 D是錯哪哩 urchins 增 otter減好像也沒錯阿 -------------------------------------------------------- Prep 1-23 From 1978 to 1988, beverage containers accounted for a steadily decreasing percentage of the total weight of household garbage in the United States. The increasingly widespread practice of recycling aluminum and glass was responsible for most of this decline. However, although aluminum recycling was more widely practiced in this period than glass recycling, it was found that the weight of glass bottles in household garbage declined by a greater percentage than the weight of aluminum cans. Which of the following, if true of the United States in the period 1978 to 1988, most helps to account for the finding? (A) Glass bottles are significantly heavier than aluminum cans of comparable size. C) Manufacturers replaced many glass bottles, but few aluminum cans, with plastic containers. 答案C 我來看傷咖的解釋 重點在percentage A是陳述事實 但我想問一下 我覺得我考試看到A就會想選 有人可以對A做一下解釋嗎 是不是 "事實" 的答案一定不能選 謝謝 -- 日情蒐點名--郭勇志︰會怕就好 〔記者羅惠齡／台中報導〕今年日本出版的新球季日本職棒球員名鑑，在分析亞錦賽議 題中，將郭勇志列為台灣隊注目投手之一，郭勇志不好意思地表示，大概是去年成績不錯 ，被注意到了。將郭勇志列入要特別注意的球員，是因為他去年獲得聯盟救援王，控球 、直球速度及壓制能力都不錯，有機會獲國家隊青睞。看到自己被日本人注意到，郭勇 志意外之餘也表示︰「會怕就好。」 --

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