The voice on the line was vaguely familiar, but Crook couldn't place it at first...电话里的声音有点儿熟悉，但是克鲁克一开始想不起来到底是谁。Don’t hazard your reputation by supporting that crook.不要冒败坏你名声的危险去支持那个坏蛋。Donaldson was a petty crook wi...
Selective dehydration of hexose, such as D - fructose, is one of main synthetic methods for 5 - hydroxymethylfurfural.果糖等己糖选择性脱水是制备 5- 羟甲基糠醛的主要方法之一.Ketohexose A ketose SUGAR with six carbon atoms , e . g . fructose.己酮糖:一...