分光光度法测定水样浊度时,在680nm波长处测定,天然水中存在的淡黄色、淡绿色不干扰 发布时间:2017-07-14 06:24 │ 来源:www.tikuol.com 题型:判断题 问题: 分光光度法测定水样浊度时,在680nm波长处测定,天然水中存在的淡黄色、淡绿色不干扰测定。
题型:判断题 —I called you at 8 O’ clock yesterday evening, but nobody answered.— Sorry. I ______ the “ Moving China 2012” award on TV. I was so deeply moved that I missed your call.A.would matchB.watchedC.had watchedD.was watching 查看答案