--- My son is lost. Did you see a boy pass by here?

--- I saw ______ boy hidden behind ______ tree over there. You may go and have a look.

A．a; the

B．不填；the　

C．a; 不填　

D．a; a

患者左眼大眦部红肿痛4天。

若此病人患的是针眼，最支持它的检查结果是（）

A.局部压痛

B.结膜囊分泌物较多

C.冲选泪道通畅

D.冲洗泪道不通畅

E.冲洗泪道不通