what high speed the coaster is moving at 后为什么加at
问题描述：
what high speed the coaster is moving at 后为什么加at
答
what high speed the coaster is moving at
正常语序应该是the coaster is moving at 【( 形容词 )speed.】
感叹句中把【】内提前,后面改成叹号就好了,中间不变