治疗牙痛的主穴是( )
【单选题】
患者壮热面赤,烦渴引饮,汗出恶热,脉洪大有力。治宜选用
A.
竹叶石膏汤
B.
清营汤
C.
白虎汤
D.
凉膈散
E.
银翘散
参考答案
参考解析
【单选题】
It was just at the moment______ he worked out the problem that he had long been puzzled about.
since
which
because
that