Her son ________ coke, but now he ________ milk.

A．used to drink; is used to drinking

B．used to drinking; drinks

C．is used to drinking; used to drink

D．is used to drink; is drinking

扩张型心肌病患者的最主要的临床表现是（）。

A．呼吸道感染

B．室性心律失常

C．心力衰竭

D．晕厥

E．房室传导阻滞