The most important factor affecting the construction of Qinghai Tibet railway is a social economy B technology C terrain D climate It's better to have some reasons

The most important factor affecting the construction of Qinghai Tibet railway is a social economy B technology C terrain D climate It's better to have some reasons

Exclude B and D
Choose C
The Qinghai Tibet Plateau is characterized by high terrain, complex terrain and permafrost
A can only be said to be the benefits of building railways, promoting ethnic unity or something
B it's obviously not technology. All the problems have been solved
D climate. Climate has little influence on railway, but great influence on aviation
More than a year after graduating from high school, I forgot all about it

What is the relationship between population distribution and terrain distribution in China

2. The third step of China's topography (1) the first step: the Qinghai Tibet Plateau in Southwest China, with an average altitude of more than 4000 meters