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【简答题】
随着人口的不断增加，经济快速发展，水利基础设施还不能很好地适应国民经济和社会发展的需要，主要表现在（ ）。
A．防洪能力低，洪涝灾害严重
B．水资源供需矛盾尖锐
C.水土流失加剧．水环境不断恶化
D.A． B．C
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【单选题】Section BDirections: There are 2 passages in this section．Each passage is followed by some questions or unfinished statements．For each of them there are four choices marked A, B, C and D．You should de...
A.
they can afford the cure for malaria
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【单选题】Obtaining Drinking Water from Air Humidity Not a plant to be seen，the desert ground is too dry．But the air contains water，and research scientists have found a (51) of obtaining drinking water from a...
A.
who
B.
where
C.
when
D.
which
【单选题】Section BDirections: There are 2 passages in this section．Each passage is followed by some questions or unfinished statements．For each of them there are four choices marked A, B, C and D．You should de...
A.
they can afford the cure for malaria
B.
they can save their cash efficiently
C.
they can live safely in the village
D.
their can get rid of poverty soon
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