楔形板的通用楔形系统常用于() A.X线模拟机 B.CT模拟机 C.直线加速器 D. 发布时间:2017-05-22 11:54 │ 来源:www.tikuol.com 题型:单项选择题 B型题 问题: 楔形板的通用楔形系统常用于()A.X线模拟机B.CT模拟机C.直线加速器D.60钴治疗机E.深部X线机
题型:单项选择题 B型题 Read and choose.(选择正确的答语,将正确选项写在括号里) ( ) 1. When is your birthday? ( ) 2. What's the date today? ( ) 3. What are you doing? ( ) 4. How many birthdays are there in January? ( ) 5. Who has a birthday in October? A. Me. B. My birthday is in May. C. It's November 10th. D. I'm drawing flowers. E. Three. 查看答案
题型:单项选择题 B型题 高速离心机主要用途包括()。A.分子生物学中的DNA、RNA的分离B.生物细胞、无机物溶液、悬浮液及胶体溶液分离、浓缩、提纯样品C.单个分子的分离D.小细胞器分离E.胸腹水有形成份分离 查看答案