( 3 分)对分子式为 C 3 H 8 O 的有机物进行仪器分析:红外光谱显示有对称甲基,羟基等基团;核磁共振氢谱有三个峰,峰面积之比为 1 : 1 : 6 ,则该化合物的结构( ) A . CH 3 OCH 2 CH 3 B . CH 3 CH(OH)CH 3 C . CH 3 CH 2 CH 2 OH D . C 3 H 7 OH
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【单选题】The record-sto re clerk asked if I needed help finding a specific title. Of all the conversations I ever had with my father, there was one specific talk I will never forget. Specific menas __________.