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Many Europeans______the continent of Africa in the nineteenth century.
A.exploded
B.expanded
C.exposed
D.explored

A.
A.exploded
B.expanded
C.exposed
D.explored


【参考答案】

D
explode'(使)爆炸',如:explodeanatombomb'爆炸一颗原子弹';expand'扩张,膨胀,扩大';expose'暴露,揭露';explore'探险,探索',如:ColumbusdiscoveredAmericabutdidnotexplorethenewconti......

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