問題詳情
38. Which one of the following descriptions is WRONG?
(A)Caffeine is a trimethylxanthine
(B) Theophyline is a dimethylxanthine
(C) Theobromine is the hypoxanthine derivative of cocoa
(D) Theobromine and theophylline are similar but lack the methyl group at N-1 and at N-7, respectively
(E) All are wrong
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增