Mary,along with her parents ______Hainan for a week and they will come back soon.

A．have been to

B．has been in

C．have been in

D．has been to

女性，41岁，宫颈管内见一赘生物，无色，表面有溃疡，摘除送检，显微镜下见肿瘤细胞呈梭形、上皮样，核大，核仁明显，胞质内有黑色素颗粒（如图）。免疫组化示S-100（+）、HMB45（++）。最有可能的诊断为（）

A.恶性黑色素瘤

B.鳞状细胞癌

C.癌肉瘤

D.肉瘤

E.尖锐湿疣