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已知一个物体在斜抛运动时斜抛角度为α(弧度),斜抛初速度为v,重力加速度为9.8,计算物体水平位移的步骤有:①计算物体飞行时间t=v?sinα/9.8②输入斜抛角度α和初速度v③输出变量s④计算水平位移量s=2w?t?cosα其正确的顺序是()。
合同的内容由当事人约定,一般包括()。
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世界贸易组织是世界上最大的多边贸易组织,它积极组织多边谈判,为国际贸易制定一系列基本原则和协定,其中最重要的原则是()。
统计调查范围跨省的涉外社会调查项目,需报经()批准。
胃底食管静脉曲张破裂大出血的最优治疗方法是()
什么是艺术意象?
硬九迫捆商坡梁伞.清代思想家魏源的代表作是侧赚四视识(剥闯评厚肚怀)
大气环境影响预测的步骤一般有()。
子宫内节育器正常位置是上缘距宫底外缘多少厘米以内()
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