对于动脉粥样硬化的叙述,下述哪一项是错误的()
A.可引起夹层动脉瘤
B.病变多位于主动脉各分支开口处
C.胸主动脉病变最重
D.病变可继发钙化、出血
E.可继发血栓形成
参考答案:C
Was it through Mary__________ was working at a high school_________ you got to know Bob?
A.who; who
B.who; that
C.that; that
D.that; where
裸子植物的种子没有子叶。