The average altitude of the Qinghai-Tibet Plateau is ().
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The average altitude of the Qinghai-Tibet Plateau is ().
A.4500
B.5000
C.3500
D.3000
参考答案:
The average altitude of the Qinghai-Tibet Plateau is ().
A.4500
B.5000
C.3500
D.3000
参考答案: