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【单选题】
湖泊或水库对河流径流有调节作用,使得湖泊或水库下游的河流径流量比较平稳。 例:甲图中 PQ为晨昏线,是甲图中的对应河段及其附近的等潜水位线图,丙图中的年径流量曲线图是从中A、E两处测得的。 关于甲图的说法,正确的是A.
位于北半球， PQ 为昏线
B.
位于南半球， PQ 为晨线
C.
PQ 间的实际距离约为 20Km
D.
图中河流径流的季节变化小
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【单选题】I visited Mr. Johnson during his stay in Shanghai _____ he attended a most important conference there. [ ]
A.
when
B.
which
C.
where
D.
in which
【简答题】He took the conference in Brussels as another opportunity to discuss with those who are interested in the economic future of Cyprus about how to best promote economic opp______ there.
【单选题】【英语 [ 单选题 ] 】 He _____ a clever boy. A. a re B. were C. is D. am
A.
a re
B.
were
C.
is
D.
am
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