如图,某市区南北走向的北京路鱼东西走向的喀什路相交于点O,甲沿着喀什路以4m/s的速度
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解决时间 2021-02-01 13:26
- 提问者网友：了了无期
- 2021-02-01 09:22
如图,某市区南北走向的北京路鱼东西走向的喀什路相交于点O,甲沿着喀什路以4m/s的速度
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- 五星知识达人网友：像个废品
- 2021-02-01 10:17
设X秒之后相距85（不想打字了.）由题意得（4X）^2+（50+3)^2=85^2化简后,解得X1=9 X2=-21（舍去）∴甲：4*9=36m乙：50+3*9=77m答：甲O点东36M,乙0点北77M.======以下答案可供参考======供参考答案1:英语练习一 worry about be divided into worry too much keep secrets fargue with sb. forgive sb. for sth. show off give up easily take care of pay attention to different kinds of ideas devote to charity modest generous unlucky shy hard-working inpatient impossible unfair inactive full dishonest incorrect weak stupid to save not meeting to eat explaining putting butterfiles planning unfair leader energetic What is he like What does Sam often dream about Which women is our new teacher
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- 1楼网友：深街酒徒
- 2021-02-01 11:45
对的，就是这个意思
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