题目

阅读下面材料, 根据其内容和所给段落开头语续写两段, 使之构成一篇完整的短文。On a sunny Saturday in June, Alyson, 3, squealed(尖叫) with laughter as she and her mother, Marlen, playedhide-and-seek in the front yard of their home. With Marlen close behind, tinyAlyson flashed into the backyard of an elderly neighbor. About halfway acrossthe yard, Alyson suddenly disappeared, seemingly swallowed whole by a barelyvisible opening in the ground. Marlen screamed. The neighbor's caretaker, Luz, 26, was preparing dinner in theneighbor's kitchen and assumed the shrieks 某银行经过最近的两次降息，使一年期存款的年利率由2.25%降低至1.98%，设平均每次降息的百分率为x，则x满足方程（ ）A．2.25%（1-2x）=1.98%B．1.98%（1+2x）=2.25%C．1.98%（1+x）2=2.25%D．2.25%（1-x）2=1.98%