扫描二维码，直接登录
题库 / Prep2007E2-SC-144
Meteor showers and individual streaks of light that flash across the sky every night are generated when tiny flecks of celestial detritus, often no larger than grains of sand or of pebbles, burn up speeding through the atmosphere.
grains of sand or of pebbles, burn up speeding
grains of sand or pebbles, burn up while speeding
grains of sand or pebbles, which burn up while speeding
a grain of sand or pebble, which burns up as it speeds
a grain of sand or a pebble, burns up when it speeds
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
RON思路：
1. no larger than，看到这个，就该想到“comparison”，前面是flecks of ...., 那后面对应的应该是grains of ....., D/E杀；
2. are generated when 后面应该接完成句子，主语是tiny flecks of....., 谓语是burn up, C杀；
3. A选项的of pebbles，是grains of pebbles, 这说不通，A杀！
登录 或 注册 后可以参加讨论