阅读理解，判断对'√'错'×'。 China is famous for the Great Wall. The Great Wall was built in Qin Dynasty(秦朝). It is very long. People call  it 'Wanli Changcheng' in Chinese. The Great Wall could keep enemies away(阻止敌人入侵) in the old days. But now it can attract many people. The Great Wall is really beautiful!  It looks like a huge dragon(巨龙). When you stand on it, you can see many beautiful sights far away(远处).The Great Wall is really great! (     ) 1. The Great Wall is very famous. (     ) 2. The Great Wall has a long history(历史)． (     ) 3. People call it'Wanli Changcheng'in Chinese because it is very long. (     ) 4. Now;the Great Wall can keep enemies away.