Emma lives far _____ school. [ ]
A. from
B. for
C. of
答案:A
栅控X线管包括几个电极()
A.0
B.2
C.3
D.4
E.5
治疗肝阳上亢头痛可选用的腧穴是()
A.梁丘
B.足三里
C.曲泉
D.太冲
E.三阴交