加入AlCl3/HCl后,某黄酮的峰带I(300~400nm)红移60nm,这表明结 发布时间:2017-07-17 23:55 │ 来源:www.tikuol.com 题型:单项选择题 问题: 加入AlCl3/HCl后,某黄酮的峰带I(300~400nm)红移60nm,这表明结构中含有()A.5-0HB.7-0HC.3’-OHD.3-0HE.4’-OH
题型:单项选择题 You can eat food free in my restaurant ________ you like.A.wheneverB.whereverC.whateverD.however 查看答案