甲型血友病属于（）
A.单基因遗传病
B.多基因遗传病
C.染色体病
D.非遗传病
E.代谢性疾病
参考答案：A
He _______ in a university for five years, but now he runs a company of his own.
A．has taught
B．had taught
C．taught
D．has been teaching
“泻南补北”法适用于（）。
A.肾阴虚而相火妄动
B.心阴虚而心阳亢
C.肾阴虚而心火旺
D.肾阴虚而肝阳亢
E.肾阳虚而心火旺
