B 选项In pursuing a swerving insect, a beetle alters its course while running 在削弱2.
its pauses become more frequent as the chase progresses.看上去在加强1.
C选项, responds immediately to changes in the insect’s direction 削弱2. pauses equally frequently在削弱1. (调整pace的话不会equally frequently)
B是对的.
-- by 会员 wycg (2011/8/4 22:09:16)
我的理解
B中用的词是swerving,迂回飞行的insect,而C中用的是moving,在移动的insect。
我觉得,如果是累的话,应该pause的频率相同;
而如果是视力问题的话,这个insect飞行方向变化有关,变化越多,则越需要Pause,B中迂回飞行的昆虫方向不断变化,pause频率也快,因而肯定了视力问题,否定了精力问题。
-- by 会员 shirleylittl (2011/9/4 8:29:14)
B 选项In pursuing a swerving insect, a beetle alters its course while running 在削弱2.
its pauses become more frequent as the chase progresses.看上去在加强1.
C选项, responds immediately to changes in the insect’s direction 削弱2. pauses equally frequently在削弱1. (调整pace的话不会equally frequently)
B是对的.
-- by 会员 wycg (2011/8/4 22:09:16)