题目内容
用红外光谱法鉴别盐酸吗啡，主要特征峰包括
2021-10-18
A.3500～3300cm-1
B.3300～3000cm-1
C.2400～2000cm-1
D.1675～1500cm-1
E.1900～1650cm-1
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='26015' and id < 2183244 and id<>'2183244' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26015' and id > 2183244 and id<>'2183244' order by id asc limit 5