引起腔隙性脑梗死最常见的原因()
A.大脑中动脉和基底动脉粥样硬化
B.高血压导致小动脉及微小动脉壁脂质透明变性
C.血流动力学异常
D.各类小栓子阻塞小动脉
E.血液异常
参考答案:B
一般规定白工件表面至半马氏体区的深度作为泞硬层深度。
—Do you know if Mary has got married John?
—Yes, They have for nearly a year.
A.to ; married
B.to ; been married
C.with ; got married
D./ ; been married