This common phenomenon is particularly worth concerning which can be associated with reality that many successful figures are characterized by diligence ,optimism and perseverance 有问题吗
2023-01-24老师您好！我练习2016英语二小作文后，利用APP批改自查时，它提出这两个句子有问题（如图），但是我认为它的理由不成立。请问这两个句子确实有问题嘛？ 1 Thank you for your congratulations, which m
2023-01-24老师这个题的这个公式应该是（FB-FA）sin60-（FA+FB）cos60=0，然后算出来数值也不对，很明显FA+FB=mgsin60=200根号3，书上应该是出错啦
2023-01-24It was your word-by-word suggestions on my draft that enabled me to find the best data… 中的data应该用单数还是复数呢？
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