【单选题】Uncle Sam is a tall, thin man. He's an older man with white hair and a white beard. He often wears a tall hat, a bow tie, and the stars and stripes of the American flag. Who is this strange, looking m...
【单选题】根据以下内容,回答题。 Passage Four Uncle Sam is a tall, thin man. He's an elder man with white hair and a white beard. He often wears a tall hat, a bow tie, and the stars and stripes of the American flag. Who i...