45. 下列何者不是小孩常見的腫瘤? (A) acute leukemia (B) small cell carcinoma (C) neuroblastoma (D) medulloblastoma

1. Malignant tumors are characterized by the following findings, except (A) Tumors remain localized, will not spread to other sites, and are amenable to local surgical removal (B) Tumors can invade and destroy adjacent structures and spread to distant sites (metastasize) to cause death (C) Lack of differentiation (D) Pleomorphism (E) Mitoses