生姜能减轻或清除生半夏的毒性，这种配伍关系是（）
A.相须
B.相使
C.相杀
D.相恶
E.相反
参考答案：C
With a lot of difficult problems_____________, the newly-elected president is having a hard time.
A．settle
B．setteling
C．to settle
D．being settled
8岁男孩子体温39．8℃，烦躁不安：主诉右膝下方剧痛，膝关节呈半屈曲状，拒动。查体：右小腿近端皮温高，压痛，病变区域穿刺抽出混浊液体，送细菌培养，最可能的结果是
A．乙型链球菌
B．金黄色葡萄球菌
C．大肠杆菌
D．链球菌
E．无细菌生长
