— What sort of house do you want to have? Something big?

— Well, it _____ be big--that's not important.[ ]

A. mustn't

B. needn't

C. can't

D. won't

外阴癌分期中ⅠB表示（）。

A．肿瘤局限于外阴，最大直径≤2cm

B．肿瘤直径≤2cm伴间质浸润≤1cm

C．肿瘤直径≤2cm伴间质浸润＞1cm

D．肿瘤局限于外阴，肿瘤最大直径＞2cm

E．肿瘤浸润 * * 下段，或 * * 或肛门