英语周报高一外研版382019 2022答案

节《满分25分)Afer being X-rayed, I was informed to have a surgery as soon as passible. Given my lack of money on methe hospital staff tried to contact my relatives living nearby but in vain. Seeing my embarrassment and suffering,worry.I am here..且epagain and again and finally got in contact with my niece. My operation went on smoothly and all the time a sense ofwarmth flooded mehim. It turned out that he had walked away without leaving a word soon after my niece arrived. We intended to findhim to express our gratitude for his timely and generous help, without which I couldn 't have recovereHowever, all of our attempts to find him failed. His help and generosity made a difference to us. We are detto pass on his act of kindness to people stuck in trouble

221解:(1)=时,直线的点斜式方程为y-2(x-√3),化简得x-3y √3=0,由得p2 3p2cos2=4根据互化公式可得曲线C的直角坐标方程为4x2 (4分)(2)将直线l的参数方程代入4x2 y2=4并整理M:(4cos'a sin2)r (8 3 cos a 4sin a)t 12△=(8√3cosa 4sina)2-4(4co2a sin2a)×12得0

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