如果我们把经济全球化看作是一个不同国家和地区之间经济联系加强的过程，那么下列论断正确的是[ ]

A．经济全球化是自新航路开辟以来就存在的现象

B．经济全球化给各国带来了同样的经济发展结果

C．二战后两大阵营的建立大大加速了经济全球化

D．各国之间人口迁移的增多不是经济全球化的标志

Extranuclear inheritance related analysis is very different from that for nuclear inheritance, ______．

A．extranuclear genes usually express uniparental inheritance
B．maternal effect is an inheritance phenomenon that offspring only express maternal traits
C．maternal inheritance is an inheritance phenomenon that offspring only express maternal nuclear genotype
D．cytoplasmic inheritance only happens in eukaryotes(organisms whose cells contain nucleus)