tumor 译成：
举一反三
- ____tumor (良性肿瘤)
- Which is not the important tumor markers for diagnosis of<br/>gastrointestinal tumor? A: PSA B: CA 19-9 C: CEA D: CA72-4
- Determining the tissue origin of the tumor depends on the tumor: () A: Growth mode B: Atypia C: Substance D: Interstitium E: Color
- Tumor suppressor genes encode proteins that normally restrain cell division. Mutation in one or more of these genes can lead to tumor formation.
- Which of the following is not a feature of a malignant tumor? () A: Pain B: Superficial vein serious expansion. C: Local skin fever. D: Slow tumor growth.