炎德英才大联考长郡中学2022考卷5答案

炎德英才大联考长郡中学2022考卷5答案，目前答案易对网已经整理了炎德英才大联考长郡中学2022考卷5答案的各科答案和试卷，更多联考试卷请关注本网站。

4C.【解析】(3 ax)(2x2 1)的展开式中x2的系数为a2x3×1 a3×2=9a2 54=63,解得a=±1,故选C.

短文改错Last Friday, on the bus home, a girl suddenly began to cry, looking very sadly. Seeing this, I thoughtdhat I could do to comforting her. That day just happened to A my birthday, and I had many gifts from mycomfortfriends,such as ike cards, flowers and chocolates. So I handed an bunch of flowers and a box of chocolates toaher."Here you are. Although I don t know what happened to you. I hope these can help you get rid of yoursorrow and bappy to you! "I say. At first, she was surprising, and then she thanked her with a bigsaIdsurprisedmesmile