2022英语周报高三24答案

第四部分写作节The apple trees have a got! harvest in QingshanVillage, which is located near the drinking water soureearea. The speeial condit ions contribute to the apples'goouality-lig in size, retl anel lasty. The green farmingme thoIs guarantee their nutrition and keep the apples fretIron any pollution.The price ranges from S I per Iund to S 1.. perpoundI. varying from its variety, not expensive butreasonal.le The more you order, the more discount youenjoy. We prommise to pay . of delivery fee and yourenquiry will receive our timely responseL. king forward to your purchase now.

a2+c2-b216.√2一1【解析】由余弦定理得cosBac ca1+√2,由正弦定理得C,乐以0SIn√2-1sinc1+√2

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