A. bone marrow B. bone C. blood D. muscle
A. hyperplasia B. metaplasia C. dysplasia D. hypertrophy
A. Uncontrollability B. Invasiveness Controllability D. Abnormality
A. a malignant tumor of mesenchymal tissue B. a malignant tumor of epithelial tissue C. a benign tumor of mesenchymal tissue D. a benign tumor of epithelial tissue
A. 对 B. 错