哮喘的基本原因为痰饮内伏，小儿每因（）而引起，成人多因（）而形成。
参考答案：反复感染时邪；久病咳嗽
Why is Venice san sinking
A．Because people only stop using underground water for industries on the mainland.
B．Because people still make use of the underground water for all purposes.
C．Because the use of groundwater far industries on the mainland has been stopped.
D．Because people do not use the underground water any more.
合纵连横
