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- 3清阅读下面材料:已知点A.B在数轴上分别表示有理数a.b,A.B两点之间的距离表示.
- 4求小于8并且分母为24的最简真分数的和
- 5Usually I arrive home at about 17:30.求检查语法错误
- 6东半球的经度范围:西经____向东经过____(经线)向东_____(经线)为止
- 7已知函数f(x)=2cos2x+(sinx)^2,求函数的最大值和最小值
- 8A man went to see a doctor.“Open your mouth,” the doctor said.Then the man opened his mouth and
- 9This pair of glasses is similar to ______ you bought last week.A.the one B.the one which
- 10设P点是三角形ABC内一点,求:P到三角形ABC三顶点的距离和三角形周长之比的取值范围