giải thích câu hỏi ngắn gọn: bản đề cương văn hóa việt nam do đồng chí trường chinh đã đề ra 3 nguyên tắc của nền văn hóa mới là dân tộc, hiện đại và xã hội chủ nghĩa

Who is the plaintiff in united states vs lopez

How did african americans the union during the civil war? a. by serving as representatives in congress b. by enlisting in the military to fight c. by organizing massive slave revolts in the south d. by negotiating for peace with the confederacy

Which answer best describes an advantage of shipping goods by canal? a) most towns would rather have canals then noisy railroads b) goods could travel very fast downstream in the canal system c) traveling by boat is a much more relaxing way to transport goods. d) heavy loads of goods could travel by boat more easily then if pulled by horses.