题目详情
单选题 The researchers caught an intermediate step in the process by which hydrogen is removed from tryptamine(色胺), namely the point at which a proton(质子) disappears from a carbon atom as the carbon-hydrogen ________ breaks
A. bond
B. trap
C. collar
D. net

学科:默认课程
时间:2026-05-24 10:37:15
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