Every few hundreds meters along the city wall there are some watch towers.
举一反三
- 中国大学MOOC: Who once led his people to build 67 watch towers along the Great Wall within the distance of 10.5 kilometers.
- The city wall of Pingyao Ancient City is 46 kilometers. It is about 10 meters high and 3 to 6 meters wide on top.
- Who once led his people to build 67 watch towers along the Great Wall within the distance of 10.5 kilometers. A: Qi Jiguang B: The First Qin Emperor C: Zhang Qian D: Emperor Wu
- The wall is about 9 meters high and 7.5 meters thick
- There are _______ different species of cats. A: a few hundreds B: a few hundreds of C: a few hundred of D: a few hundred