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单选题
下列化合物在IR的3700~2700无吸收的是()。
A
乙醚
B
乙烯
C
二氯甲烷
D
四氯化碳
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更多 “单选题下列化合物在IR的3700~2700无吸收的是()。A 乙醚B 乙烯C 二氯甲烷D 四氯化碳” 相关考题
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某化合物在紫外光区270nm处有一弱吸收带,在红外特征区有如下吸收峰:2700cm-1~2900cm-1(双峰),1725cm-1。则该化合物可能是:( ).
A. 醛B. 酮C. 羧酸D. 酯
考题
WhichCiscoCatalystswitchesfitintheaccessarea?()
A.CiscoCatalyst2900Series,Catalyst7300Series,andCatalyst8000SeriesB.CiscoCatalyst2900Series,Catalyst3700Series,andCatalystSeriesC.CiscoCatalyst2700Series,Catalyst7300Series,andCatalyst8000SeriesD.CiscoCatalyst2700Series,Catalyst3700Series,andCatalyst4500Series
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Cisco Catalyst_switches fit in the access area.()A、 1600,7300 and 8000 SeriesB、 2900,3700 and 4500 SeriesC、 2700,7300 and 8000 SeriesD、 2700,3700 and 4500 Series
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某一化合物在紫外光区270nm处有一弱吸收带,在红外光谱的官能团区有如下吸收峰: 2700cm-1~2900cm-1双峰,1725cm-1。则该化合物可能是()。A、醛B、酮C、羧酸D、酯
考题
Which Cisco Catalyst switches fit in the access area?()A、 Cisco Catalyst 2900 Series,Catalyst 7300 Series,and Catalyst 8000 SeriesB、 Cisco Catalyst 2900 Series,Catalyst 3700 Series,and Catalyst SeriesC、 Cisco Catalyst 2700 Series,Catalyst 7300 Series,and Catalyst 8000 SeriesD、 Cisco Catalyst 2700 Series,Catalyst 3700 Series,and Catalyst4500 Series
考题
单选题Cisco Catalyst_switches fit in the access area.()A
1600,7300 and 8000 SeriesB
2900,3700 and 4500 SeriesC
2700,7300 and 8000 SeriesD
2700,3700 and 4500 Series
考题
单选题Which Cisco Catalyst switches fit in the access area?()A
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Cisco Catalyst 2700 Series,Catalyst 7300 Series,and Catalyst 8000 SeriesD
Cisco Catalyst 2700 Series,Catalyst 3700 Series,and Catalyst4500 Series
考题
问答题未知化合物是否有叁键在IR谱中有何特征吸收带?
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