Last year,land values in most parts of the pineland rose almost asfastas, and in some parts even faster than ,those outside the pinelands. 我想问的就是,为什么those outside the pinelands后面不用加个助词,比如说变成,land values rose asfastas those outside the pinelands did. 不动,这一类型的问题纠结了好久了,如果是faster than应该是要加did的,但是为什么as。。。as就不加呢?