– Do you know ________?

– Oh, I know he was born in 1929.

A．how old my grandpa is

B．how old is my grandpa

C．where my grandpa was born

D．when was my grandpa born

一患者车祸后2小时送至医院，诉咳嗽、胸部疼痛。查T：36.5℃，P130次/分，R30次/分，BP90/60mmHg。神清，右胸部压痛明显，右肺呼吸音低，右下肢骨折征。胸片示右侧液气胸。 拟诊为（）。

A.联合伤

B.混合伤

C.多发伤

D.多处伤

E.复合伤