题目

 The little girl is walking along the beach, happy and joyful, ________ bending down to pick up a beautiful seashell.  A. occasionally     B. regularly       C. apparently      D. approximately 答案：A列式计算．（1）从4个105里减去1220的25%，差是多少？（2）10减去它的 20%，再去除12，商是多少？（3）一个数的5倍减去与的积，差是，求这个数．（用方程解）．