From the last three paragraphs we know the fact that ______.A.the construction of Beijing'
From the last three paragraphs we know the fact that ______.
A.the construction of Beijing's first light railway is among the 50 large projects
B.a 40.5-kilometre line will be added to Beijing's first light railway
C.the length of the subway will be up to 82.25 kilometers in 2005
D.a 70-meter-wide green belt will supply us with enough water