Traditional ______ enable local people to go across the Nu River conveniently.
A. wooden bridges
B. iron bridges
C. ziplines
D. cable cars
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In Yunnan, the domestic river systems are the ______ and the ______.
A. Lancang river sysytem
B. Nanpan–Zhujiang river-system
C. Jinsha-Yangzi river-system
D. Nu river sytem
In the rainforests in Yunnan, what plant is known as the “Longevity Pine"?
A. latex tree
B. Oil palm
C. Mayten
Dracaena
Which tropical plant is related to the Buddhist scriptures of Dai people?
A. Sugar Palm
B. Pattra palm
C. Oil palm
D. Banyan tree
Amozon tropical rainforest is known as “the lungs of the world” and “______ ”.
A. the green house
B. the global oxygen factory
C. the world garden
D. the plant kingdom