判断题
原癌基因的显性突变导致细胞过度增殖而形成肿瘤，最有可能的突变是移码突变。
错误(↓↓↓ 点击‘点击查看答案’看答案解析 ↓↓↓)
未知题型 材料的强度用单位截面积上所受的力，也就是力学课程中说的（ ）来表示。
单项选择题 Directions: Listen to the passage and choose the best answer to each of the following questions. How effectively can the average person learn during sleep as in the same period during the day?
单项选择题 多尿而尿相对密度高见于（ ）
