仿写划线的语句，使前后文连贯。 如果你是一棵大树，就洒下一片绿阴；如果你是一株小草，就增添一份春色；________ ___________________________________________
—Do you think I should join the singing group, Mary? —________ If I were in your shoes, I certainly would. A．None of your business. B．Why no
圆心距为3的两圆，半径分别是方程的两个根，则两圆的位置关系是（ ） A．相交 B．外离 C．内含
已知数列的前项和为，且是与2的等差中项，数列中，，点在直线上．（Ⅰ）求和的值；（Ⅱ）求数列,的通项和；（Ⅲ）设，求数列的前n项和．
（09年育才学校月考）如图所示，表示一交流电的电流随时间变化的图像。此交流电的有效值是A．B．5AC．D．3.5A
15．请将下列语句重新排序，衔接最恰当的一组是(3分)( ) ①孩子的学习兴趣更浓，学习动机也更明确 ②学前教育重要的是让儿童积累感性的经验，丰富
The TV set he _________ works well now. A. has repairing B. having repaired C. has been repaired D. has had repaired
