患者,女,44岁,患内痔,便血鲜红,出血量多,伴有口渴、便秘、尿赤,舌红,脉细数。其治法是()
A.清热解毒
B.清热凉血
C.凉血止血
D.清热泻火
E.行气活血
参考答案:B
English is spoken ____ a second language in many countries. Many Chinese learn it ____ different ways.
A.to, for
B.by, as
C.as, in
D.for, by
属于大气中二次污染物的是()
A.CO
B.SO2
C.CO2
D.H2S
E.SO3