霍乱的治疗下列哪项最重要（）
A.补液
B.镇静
C.止痛
D.降温
E.止泻
参考答案：A
It took them_______ to finish the work yesterday.
A．sometimes
B．sometime
C．some time
D．some times
林某患亚急性细菌性心内膜炎，需抽血作血培养，护士应给患者抽血多少为宜：
A．2ml
B．4ml
C．5ml
D．8ml
E．10ml
