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【单选题】
19世纪末20世纪初，资本主义世界体系最终确立，其主要依据是（）A.
第二次工业革命兴起
B.
垄断资本主义形成
C.
世界上绝大部分土地和人口被资本主义国家奴役和控制
D.
资本主义制度在全世界范围内的完全确立
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皮皮学刷刷变学霸
举一反三
【简答题】粗加工和强力切削时，应取（）后角，精加工时应取（）后角。
【单选题】D Our surroundings are being polluted faster than ever and it seems that people cannot prevent it. Time is bringing us more people, and more people will bring us more industry', more cars, larger citi...
A.
the population of the world is increasing faster
B.
people use too many man-made materials
C.
we have more industry
D.
we are producing more cars, trucks and buses
【单选题】As you know，it is my duty to________my younger sisters from being hurt when they are in danger.
A.
prevent
B.
save
C.
stop
D.
protect
【简答题】Being a man is a pre-existent condition. ( )
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