题目

This book is concerned the development of China; while most readers are concerned more the hero's fate. A . with; about B . about; with C . for; about D . for; with 答案：A我们食用的蒜黄，其叶片是黄色的，这是因为培育时（ ）A．缺乏肥料 B．没有见光 C．缺少水分 D．种植过密