—Bob speaks Chinese quite well.

—Yes, _____. Both of them practise ______ Chinese every day. [ ]

A. so does Tom, speaking

B. Tom does so, to speak

C. so Tom does, speaking

D. so does Tom, to speak.

男性，78岁，反复晕厥伴抽搐2天，既往无胸痛、发绀、浮肿及气短，血压180/80mmHg，心率45次／分，律齐，心尖部第一心音强弱有变化，心底部有二级喷射性杂音，其反复晕厥伴抽搐的原因最可能是（）

A.窦性心动过缓伴室性期前收缩

B.高血压脑病

C.完全性房室传导阻滞

D.二度Ⅰ型房室度传导阻滞

E.阵发性房颤伴部分房室传导阻滞