【单选题】The view from the top of the luxurious Morgan Centre down onto Beijing's Olympic Green is breath-taking, There, far below, lies the stunning' bird nest' Olympic Stadium. Right next to it is the equall...
A.
for quite a large area surrounding Beijing, there is no healthy river in any direction from it.
B.
Beijing lacks of water supply as most rivers in nearby provinces are either dried or polluted.
C.
to find a healthy river near Beijing, one needs to drive beyond a hundred miles from it.
D.
within a hundred miles of Beijing, all the rivers are polluted by the wastes from the capital.