血管周围细胞的营养不足,引起外膜的变性.Inadequate cell nutrition around vessels causes degeneration of tunica adventitia.假性动脉瘤一词用于只有一层动脉外膜的动脉瘤.A false aneurysm is the term applied when only the adventitia is present.心脏的外表面是由另一层结缔组织, 即心外膜所覆...
He had been a cub reporter for the Kansas City Star.他曾是《堪萨斯城市星报》的一名年轻记者。Kansas City area churches kicked in $35,000 to support the event.堪萨斯城地区的教会为此事捐助了35,000美元。A very active cold front brought dramatic weather changes t...