在Exercise 3 中,A mysterious phenomenon文中第7题,It can be inferred from the passage that if the flock of birds described in lines 8-9 were navigating by compass sense alone, they would, after the storm, fly
(A) east (B) north (C) northwest (D) south (E) southeast
文章说birds靠compass sense是无法正确导航的,原因是“一个正在往东飞的bird被风往南方刮,但之后bird却能很正确的往东北方向飞(即回到原来的飞行目标)”,这种事实是不可能由compass sense来完成的,所以,问题问:如果一只往东飞的鸟were navigating by compass sense alone,那会怎样?很明显,他会继续往东飞而不会回到正确的航线