扫描二维码，直接登录
题库 / Prep2007E1-SC-139
On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.
On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow
On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth
On Earth, the rate at which trees grow is believed to be among the surest indications of sunspot cycles
Among the surest indications on Earth of sunspot cycles, believed to be the tree growth rate
Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow
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）。
E-The rate at which trees grow, as seen in the rings visible in the cross sections of their trunks,is believed to be among the surest indications of sunspot cycles.
为什么不选C:
as seen的修饰对象。as seen说的是“正如（我们在）树桩上的年轮所看到的那样”。
从语义上应修饰树的成长，把句子还原trees grow at the rate as seen in the rings visible in the cross sections of their trunks. 树木增长的速度，从树桩上年轮的圈上可见一斑。
C选项，使得as seen的修饰对象变成了sunspot cycles，语义完全错误了。
登录 或 注册 后可以参加讨论