指出实热泄泻用“通因通用”之法的医著是（）
A.《素问·至真要大论》
B.《金匮要略》
C.《类经》
D.《景岳全书》
E.《医宗必读》
参考答案：B
______是火警电话号码；______是救护电话号码．
Peter, perhaps John, playing with the little dog.
A．is
B．are
C．were
D．seems
