---People, especially teens, think it_______ great fun to surf on________ Internet.

--- I agree with you.

A．a; the

B．a; /

C．/; the

D．/；/

慢性炎症组织内浸润的细胞主要是()

A．淋巴细胞

B．中性粒细胞

C．嗜酸性粒细胞

D．嗜碱性粒细胞

E．肥大细胞