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发表于:2020-04-06
问题详情: 从方框选择适当的词并用其正确形式填空。of what helpful hobby with much success if clear do write fewConfidence(自信)isveryimportantindailylife.Itis...
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发表于:2024-02-10
1、Theworkofdischargeconformedtostandardsofindustrialpollutionsourceshadbeensuc-ceded.2、ObjictiveToreducetheformationofcicatrizationoffilteringblebandelevatethesuccessfu...
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发表于:2020-10-17
问题详情:Wefinddifferentkindsofanimalsintheworld.Someanimals,suchastigersandlions,liveinbigforestandtheyarecalled 21 animals.Someotherslikesheepanddogsare 22 b...
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发表于:2019-02-03
问题详情:取燕麦胚芽鞘切段,随机分成三组,第1组置于一定浓度的蔗糖(Suc)溶液中(蔗糖能进入胚芽鞘细胞),第2组置于适宜浓度的生长素(IAA)溶液中,第3组置于IAA+Suc溶液中,一定时间内测定胚芽鞘长度的...