判断题
Yosemite Falls is the highest one in both North America and South America.
错误(↓↓↓ 点击‘点击查看答案’看答案解析 ↓↓↓)
单项选择题 Who is the first explorer traversing Grand Canyon?（）
单项选择题 Grand Canyon State refers to（）。
单项选择题 Who signed the bill to establish Yosemite National Park?（）
