心房颤动常见于()。
A.风心病二尖瓣狭窄
B.高血压性心脏病
C.心肌炎
D.甲状腺功能低下
E.无器质性心脏病患者
参考答案:A
What they need most _____ money while what we need most _____ textbooks.
A.were; is
B.are; is
C.was; are
D.is; are
胸部致伤原因,平时以车祸、塌方挤压及钝器所致,多为()性损伤,战时多为火器所致的()性损伤。