设曲线L1:y=1-x2与正x轴、正y轴所围成的区域被曲线L2:y=ax2分为面积相 发布时间:2022-02-06 00:03 │ 来源:www.tikuol.com 题型:填空题 问题: 设曲线L1:y=1-x2与正x轴、正y轴所围成的区域被曲线L2:y=ax2分为面积相等的两部分,则常数a=______.
题型:填空题 .Government should adopt laws that would ban advertising and other types of________of tobacco products. A.deliveryB.spreadC.promotionD.discount 查看答案