2022卷临天下 全国100所名校最新高考模拟示范卷文综四 答案

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2.B集合A={(x,y)x2 y2<4,x∈Z,y∈Z}={(1),(-1,0),(-1,1),(0,),(0,0),(0,1)(1,-1),(1,0),(1,1).又B=(x,y)x y≥1},所以A∩B={(0,1),(1,0),(1,1)},所以A∩B中元素的个数为3.故选B

Our school had a school choir competition June 20. As Panning, the competition tookonplannedplace in the main hall. I was very nervousafter we began to perform. Hid!"IStartto have thebeforestartedhiccups(t] WM). Lisa advised me to hold my breath and countedto ten, while Amy brought somecountwarm water and asked me to drinkthemwaItMy friends tried to help me in manybut nothingwaysworked."BOO! " Tony frightened me from behind my back. I was Suchsurprised that my hiccupsstopped, At last, we sang inbeautifully harmony on the stage.beautiful