“故水病者，下为胕肿大腹，上为喘呼不得卧”的病机是

A．脾肾阳虚，水湿泛滥

B．肾病及心，水气凌心

C．肺脾失司，津液不布

D．肾病及肺，肺失宣肃

—What does the notice on the wall say?

—“No person       take books out of the reading room; otherwise he would be fined.”

A．will

B．may

C．shall

D．must