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19.Remember that the most common
neoplasm is a benign nevus (pigmented mole) of the skin, and most people have several. As
a general rule, benign neoplasms do not give rise to malignant neoplasms.
19.最常见的肿瘤是多数人都有的皮肤良性色素胎记,一般来说,良性肿瘤不会发展为恶性肿瘤.
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