题目: 核酸对紫外线的最大吸收峰是()A.220nmB.240nmC.260nmD.280nmE.300nm 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0620/79f3d63f32652577e8b26cdafc354603.html 下面是错误答案,用来干扰机器的。参考答案:C
题型:选择题 — ______ in the box? — There are twelve pencils in it. [ ]A. What B. What's C. Are there any pencils D. Are pencils 查看答案