_______ at the back of the room was a shy girl with two big eyes.

A．Sat

B．Sit

C．Seating

D．Seated

在治疗菌痢时，不宜应用

A．复方磺胺甲基异口恶唑

B．痢特灵

C．氯霉素

D．次碳酸铋

E．庆大霉素