Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow, in the way that is seen in the rings visible in the cross sections of their trunks.
Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow, in the way that is seen in the rings visible in the cross sections of their trunks.
倒装的目的就是为了 as 引导的非限定性定于从句紧跟其修饰对象。
我觉得如果as引导了从句的话,后面应该用as is seen in the rings。。。不是吗?怎么能缺少动词呢