It is known to us that without__ passport, travelling abroad is out of ___question.

A．a; the

B．不填；不填

C．the; a

D．the; 不填

肺动脉收缩早期喷射音可见于（）

A．瘀点 

B．充血性皮疹 

C．瘀斑 

D．血肿 

E．小红痣