1.请问以下句子里加粗的部分中，such...as...是引导了一个定语从句吗？不然这个句子似乎有两套主谓宾。可如果是定语从句，as只能当关系代词，但是as在从句中又不充当成分。

More than half the roster, including such popular characters as Black Panther,Scarlett Witch, Star Lord, Spider-Man, and Doctor Strange weren’t merely killed, they were wiped out of existence with the snap of a finger by Thanos (Josh Brolin), the purple colossus whose hand of fate was bedecked with the six Infinity Stones, during the cliffhanger climax of Avengers:Infinity War.

2.请问以下2句都对吗？

a).Don't do such silly things as marrying him.

b).Don’t do anything silly such as marry him. 

谢谢！