请判断下列哪一个标题属于关键词堆砌情况？（） A: 2015NewWomen’sSummerDressVNeckSleevelessSexyCocktailPartySlimFitCasualDressesWorkWearXE3315 B: SexySlimAutumnDressNewFashionLetterPrintedLongSleeveHoodyONY2208 C: 2015CasualWomenPartyDressesLetterPrintHoodedFrontPocketLongSleeveSlimBlackGrayWhite#81022 D: LadyFauxLeatherdressminidressWomensexyLacedressslimfittednightbarClubdressesblackredHotcatsuit
请判断下列哪一个标题属于关键词堆砌情况？（） A: 2015NewWomen’sSummerDressVNeckSleevelessSexyCocktailPartySlimFitCasualDressesWorkWearXE3315 B: SexySlimAutumnDressNewFashionLetterPrintedLongSleeveHoodyONY2208 C: 2015CasualWomenPartyDressesLetterPrintHoodedFrontPocketLongSleeveSlimBlackGrayWhite#81022 D: LadyFauxLeatherdressminidressWomensexyLacedressslimfittednightbarClubdressesblackredHotcatsuit
红外光谱法鉴别盐酸普鲁卡因时，酯羰基的特征吸收峰为多少波数？ A: 3315、3200 B: 2800-3000 C: 1645 D: 1604、1520 E: 1692
红外光谱法鉴别盐酸普鲁卡因时，酯羰基的特征吸收峰为多少波数？ A: 3315、3200 B: 2800-3000 C: 1645 D: 1604、1520 E: 1692
红外光谱法鉴别盐酸普鲁卡因时，酯基的特征吸收峰为（ ）cm-1 A: 3315、3200 B: 2585 C: 1692 D: 1645 E: 1604、1520 F: 1271、1170、1115
红外光谱法鉴别盐酸普鲁卡因时，酯基的特征吸收峰为（ ）cm-1 A: 3315、3200 B: 2585 C: 1692 D: 1645 E: 1604、1520 F: 1271、1170、1115
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