学普试卷·2022届高三第四次(模拟版·新高考)语文答案

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【考范文】Dear fellow studentsWith the cold and flu season colliding (Rzi) with the COVID. 19 pandemic, how to protect ourselves ismailer of urgency. To combat the flu and other illnesses this season, all students had better do as followsThe single best way to prevent seasonal flu is to get vaccinated, but good health habits like avoidingpeople who are sick, covering your cough and washing your hands of ten can help stop the spread of germsadditionally, it's strongly advised to get enough sleep and reduce stress, which is also of great help.It's high time that we took preventive measures to ensure a sound body and a happy lifeStudent Union

4.B【解析】由于体重是隔代遭传,且呈线性相关,则取数据(58,58),(64,62),(58,60),得x一5+到4土8=60,y=++6-60,择本点的中心为(60.60,我入=bx+,得a=的-0.5x0=30,由y=0.5x+30,取x=62,可得y=0.5×62+30=61kg故预测他的孙子的体重约为61k