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※ 引述《Diablotin (咕嚕咕嚕)》之銘言: : In experimenting with artificial suns, Kramer made another interesting : discovery. If the artificial Sun remained stationary, the birds would shift : their direction with respect to it at a rate of about 15 degrees per hour, : the Sun's rate of movement across the sky. Apparently, the birds were : assuming that the "Sun" they saw was moving at that rate. When the real Sun : was visible, however, the birds maintained a constant direction as it moved : across the sky. In other words, they were able to compensate for the Sun's : movement. This meant that some sort of biological clock was operating-and : a very precise clock at that. : 7. According to paragraph 5, how did the birds fly when the real Sun was visible? : (A) They kept the direction of their flight constant. : (B) They changed the direction of their flight at a rate of 15 degrees : per hour. : (C) They kept flying toward the Sun. : (D) They flew in the same direction : 答案B 可是我覺得是A : 大家覺得咧? 我個人以為答案B是沒錯的耶 因為鳥雖然本身會依照太陽而改變他們的方向 但是鳥並不會判斷Kramer所用的太陽是真的還假的 (文中是說Kramer用了一個人工太陽) 另外有說到鳥會設想他們所看到的那個太陽會以某個速率移動 所以Kramer得到一個結論是當真正的太陽出來時 鳥才會保持一個固定的飛行方向 如果有問題的話還請指正囉 ^^" -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.36.178.33
yuimo:我也覺得是b耶 12/17 17:15
Diablotin:保持固定的飛行方向 那不就是A嗎? 12/18 01:17
pizzahut:可是鳥並不會判斷太陽是真的還是假的 12/18 09:10
pizzahut:所以鳥只是把他們當下看到的人造太陽當作真的太陽 12/18 09:12
pizzahut:所以實際上他們是真的看到太陽才會這樣?? 不曉得.. 12/18 09:13
pizzahut:說不定看到一顆光球就會這樣了.. 這只是我的觀點啦 12/18 09:13
pizzahut:而且 原文已經有大大回覆了 你答案有問題.. 12/18 09:14
Diablotin:恩恩謝謝 我後來看到了! 12/18 10:59