第二节读后续写( One possible version)Finally, the day came. Anxious but excited, I spent the whole day cleaning the house andpreparing the food. With everything ready, all guests arrived one by one. within the next hourand a half, I had six complete strangers laughing, eating, and drinking at my apartment. Musicwas playing, the conversation was flowing, and new friendships were being formed. It wasincredible. One of the people, whom I messaged on Instagram, told me this was one of the mostfun New York City experiences he'd ever had. All enveloped in a curtain of darkness, it was timeto say goodbyeWhen everyone had left, I sat down and processed what had just happened. I couldn,'tbelieve that 48 hours before I didnt know any of these people, and now we were all laughing andtalking like we'd always been friends. It was a really enjoyable and unforgettable experience forme. It also made me realize that doing something kind for strangers isnt awkward butmeaningful. Whether it's paying it forward with a cup of coffee or simply smiling at a stranger,random acts of kindness do make the world a little better (173 words)

22.解(1)∵-4cos+2sin0=0,locos+2nsin0-0∴x+y2-1x+2y=0即(x-2)2+(y+1)2=5-2+cosa(2)将直线的参数方程(1为参1+s数)代入C的普通方程(x-2)2+(y+1)2=5,得r2+lsin-1=0,则1+1=-4sina,l1l2=-1所以√Q+QBF=+r√(1+1)2-2t1=√16sima+2≤3√2,所以√Q+QBF≤32即√Q+QB的最大值为3√2

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