3% of potentially usable freshwater only less than ______ available for sustainly all life on earth.
查看答案
___________ goes to the wide range of factories which make the products we buy each day.
This limited supply isn't distributed evenly around the globe.
A. 对
B. 错
According to the video, may our planet run out of water?
坦赞铁路是迄今中国最大的援外成套项目之一，全长（）公里？
A. 1860.5
B. 1860
C. 1861
D. 1861.5
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