亚急性感染性心内膜炎的主要致病菌是()。
A.草绿色链球菌
B.金黄色葡萄球菌
C.溶血性链球菌
D.肺炎链球菌
E.绿脓杆菌
参考答案:A
All passengers _______, please fasten your seat belts and remain seated _______ the plane is landing.
A.on board; until
B.abroad; since
C.on the board; before
D.aboard; when
内伤头痛的发生,与下列哪些脏腑关系最密切()
A.心、脾、肾
B.肺、胃、肾
C.心、肺、肾
D.心、肝、肾
E.肝、脾、肾