44.2

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1.

RESULTS Chemical structure of the product was confirmed by IR , ~ 1 HNMR and MS. Total yield was 44 . 2 %.

结果所得产物化学结构经红外光谱、核磁共振氢谱及质谱确证，总收率为 44 .

2.

Results 44. 2% of boys and 46. 6% of girls were dating , of whom , 52. 3% were dating because of adoring mutually ;

结果 44.2%的男生和 46.6%的女生在大学谈过恋爱，其中 52.3%的人是因为 “相互爱慕 ”而发生感情；

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