A-A+ _____ economically one tin of oil will last a 2022-08-06 18:39:52 问答库 阅读 180 次 问题详情 _____ economically, one tin of oil will last at least three months.A.To useB.To be usedC.UsingD.Used请帮忙给出正确答案和分析,谢谢! 参考答案 正确答案:D