迷人又慵懒 3108 31296 2022-07-10 14:15:20 10 010 我有病(一更)修 4086 28186 2022-07-12 09:50:05 11 011 互相帮助(二更)(修) 3731 28215 2022-07-15 12:40:07 12 012 一起睡吗? 3619 27929 2022-07-15 13:07:40 13 013 扫厕所 3282
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(e 31296).1H n.m.r. δ(CDCl3) 1.53, d, J 6.2 Hz, (H2′)3; 2.13, s, COCH3; 5.66, m, 1H, H′; 7.43, bs, H4.13C n.m.r. δ(CDCl3); 18.9, CH3; 20.9,6 C2′; 53.4, C1′; 81.7, 5-CHBr; 134.6, C4; 136.7, C3; 149.2, C5; 166.0, C2; 169.6, CO. Mass ...
One day, early in the morning on my way to work, I saw a little girl carrying a small Cambridge schoolbag. I could imagine that she must be proud of her schoolbag. The bag is designed for students, which can hold a lot of things, such as textbooks, pens and pencils, snacks and wat...