2. 职称英语
  3. The main topic of the passage is the ______. [br] According to the passage the p

The main topic of the passage is the ______. [br] According to the passage the p

游客2023-09-02  72
问题 The main topic of the passage is the ______. [br] According to the passage the primary function of allelomimetic behavior in bird is to ______.
选项 A、defend nests against predators
B、look at each other
C、locate prey
D、warn against predators
答案 D
解析 此题考查学生辨认某些事实的能力。根据短文，鸟类遗传模仿行为的主要功能是警惕掠食者。如果选A保护鸟巢不受掠食者侵扰。主次颠倒，不合题意。主要功能是保护鸟类本身，而不是鸟巢。如果选B相互对视，allelomimelic behavior更没有这种功能，离题太远。如果选C放置被捕食的动物。文不对题，不可取。
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