主要用于治疗猪痢疾的首选药物是（）
A.青霉素G
B.林可霉素
C.环丙沙星
D.呋喃坦啶
E.乙酰甲喹
参考答案：E
The last time I _______ Jack, he _______ football with classmates.
A．had seen; was playing
B．saw; played
C．had seen; playing
D．saw; was playing
太阳伤寒与中风的鉴别要点，下列解答哪项是正确的（）。
A.或已发热、或未发热
B.恶寒与否
C.恶风与否
D.汗出与否
E.头痛与否
