1. The worlds longest wall an biggest ancient architecture
2. It has a stunning array of scenery
3. The official length is 21,196.18 km<span />
The answer is C sorry i’m late!!
<span>C.Information is crucial for making good decisions.
Supplement the best idea:
</span>A.Purchasing goods and services online is more convenient.
B.Security measures guard people's private information.
<span>D.Faster communication increases the amount of economic activity.</span>
