— I called you yesterday evening, but no one answered.      

— I ______in my bedroom at that time.

A．read

B．was reading

C．am reading

D．reads

亚急性感染性心内膜炎右心病变赘生物脱落可引起（）

A.肺栓塞

B.大脑中动脉栓塞

C.脾动脉栓塞

D.肾和肢体动脉栓塞

E.颅底动脉滋养血管栓塞形成菌性动脉瘤破裂