A-A+ A.At once.B.Fifteen days later.C.By the 15th o 2022-08-01 20:30:14 问答库 阅读 166 次 问题详情 A.At once.B.Fifteen days later.C.By the 15th of this month.D.In the middle of this year.请帮忙给出正确答案和分析,谢谢! 参考答案 正确答案:C