※ 引述《cr2758cr2758 (渔夫)》之铭言： Every fall Croton's jays migrate south. The jays always join flocks of migrating crookbeaks with which they share the same summer and winter territories. If a jay becomes separated from the crookbeaks it is accompanying, it wanders until it comes across another flock of crookbeaks. Clearly, therefore, Croton's jays lack the navigational ability to find their way south on their own. Which of the following, if true, most strengthens the argument above? 题目是说... 如果有一只JAY没跟上一起飞的CB群, 就会待在那边等待下一群CB飞过. 所以推论JAY没有导航能力 (显然是因为JAY都要跟着飞) 所以我们要强化JAY真的是路痴 .... (JAY不等於JAY PS:勿战周董) A. Croton's jays lay their eggs in the nests of crookbeaks, which breed upon completing their southern migration. 无关 B. The three species most closely related to crookbeaks do not migrate at all. 无关 C. In the spring, Croton's jays migrate north in the company of Tattersall warblers. 哦....JAY春天跟其他鸟一起飞...感觉答案有strengthen到!! 春天跟这种 + 秋天跟CB...=>路痴!!!!! D. Species other than Croton's jays occasionally accompany flocks of migrating crookbeaks. 无关 E. In the spring, crookbeaks migrate north before Croton's jays do. 我想...如果是before的话, 会不会可能是指 CB飞走 JAY才走 这样反而有点像弱化的感觉 weaken原文 其实JAY不是路痴!!他春天自己会飞.. : 答案是C : 可是我觉得E也可以 : 有请大神解释一下Orz 非大神~~牛刀小试一下@@"... --

※ 发信站: 批踢踢实业坊(ptt.cc) ◆ From: 114.47.46.172