OG12 第42道SC

lichuanfan

42. Scientists have recently discovered what could be the
largest and oldest living organism on Earth, a giant
fungus that is an interwoven filigree of mushrooms and
rootlike tentacles spawned by a single fertilized spore
some 10,000 years ago and extending for more than
30 acres in the soil of a Michigan forest.
(A) extending
(B) extends
(C) extended
(D) it extended
(E) is extending
Parallelism; Verb form
Th e original sentence is correctly written. Th e
giant fungus is described as an interwoven filigree
spawned … some 10,000 years ago and extending for
more than 30 acres. Th e present participle extending
parallels the past participle spawned.

以上是OG12里面的解释。我第一次看感觉挺明白的，可是再看此题时有点糊涂：rootlike在句子中到底是做什么成分。
先谢谢各位大侠的指教。。。

lijiahui0422

我觉得tentalcles 和mushrooms是并列的，an interwoven filigree of mushrooms and
rootlike tentacles

lichuanfan

谢谢啊，我的大脑终于转起来了