— I'm a little thirsty. Would you mind _____ me some water?

— _____. I'll do it right away. [ ]

A. to pass; OK

B. passing; Certainly not

C. passing; Of course

复发性口疮的临床表现，以下哪一项是错误的

A．好发于青少年
B．反复发作口腔黏膜圆形或椭圆形溃疡
C．为多数簇集的针头大小、透明小水疱
D．溃疡面中央稍凹下，周围有狭窄红星
E．病程7～10天，有自限性