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1)完成假期作业;
2)参加英语角活动;
3)读几本英语读物。
注意:1)词数100左右;
2)可以适当增加细节,以使行文连贯。
Tom was so careless that he his right arm when he was riding to school
yesterday.
(Ⅰ)求椭圆Γ的标准方程;
(Ⅱ)设直线l:y=x+m(m∈R)与椭圆Γ交于不同两点A,B,且|AB|=3 2 .若点P(x0,2)满足| PA→ |=| PB→ |,求x0的值.