Sometimes the earthquake is so violent(猛烈的)that it can destroy the whole city,
Sometimes the
earthquake is so violent(猛烈的)that
it can destroy the whole city,---happened in Tang Shan.,in 1976
A as B that C where
D which
选A,为什么
后面那句话是想举个例子证明前面说的那句是对的,所以用AS表示就像76年的唐山大地震那样（摧毁了整座城市）,其他的that where which都是用在定语从句或者宾语从句里面修饰特定的名词.
