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【判断题】
中俄界河为黑龙江,发源于长白山白头山天池。A.
正确
B.
错误
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举一反三
【单选题】Stephen Schneider, a climatologist at Stanford, notes that unlike greenhouse gases, which ______ rapidly around the globe, the sulfate droplets tend to concentrate over industrialized regions.
A.
unify
B.
fragment
C.
disperse
D.
shatter
【单选题】Which industrialized nations has the shortest school year?
A.
Germany
B.
Japan
C.
France
D.
The U.S.
【简答题】在临界照度值以下，随着照度值增加，工作效率迅速提高，效果十分明显，在以上，增加照度对工作效率影响很小，甚至没有；当照度值高到使人产生眩光时，会降低工作效率。13工业企业的建筑物照明，通常采用三种形式：（）、人工照明和混合照明。其中人工照明又可分为：一般照明、局部照明、综合照明和特殊照明。
【单选题】Why was Britain known as “an empire on which the sun never sets”? Because it used to be the greatest industrialized country in the world.
A.
Because it used to be the largest country in the world.
B.
Because it was once one of the oldest and strongest colonial powers in the world.
C.
Because it had bought a lot of islands around the world.
D.
Because it used to be the greatest industrialized country in the world.
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