48. Fragile X syndrome 的基因突變特性為下列何者 (A) autosomal dominant (B) sex-linked recessive (C) trinucleotide-repeat mutation (D) gain of one additional chromosome X

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