血栓形成性脑梗死和脑出血最具有鉴别意义的是（）

A.发病年龄

B.起病状态

C.起病速度

D.有无高血压病史

E.神经体征

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)