Help Help!顺带解释一下它们的区别,Thank you.

问题描述:

Help Help!顺带解释一下它们的区别,Thank you.
He riase ___ for the charity to help poor children
A thousand of dollars
B thousands of dollars

B没有thousand of 这样的短语,只有thousands of ,意为"大量的".但值得注意的是,thousand前用数词表示"几千"时,不用复数,如:two thousand且一般没有two thousand of这样的说法,two thousand后直接接可数名词复数即可.那到底选哪个喃?选B吗?选B