标题: 大全561 [打印本页] 作者: veroniquelin 时间: 2004-1-10 20:23 标题: 大全561 561. One pervasive theory explains the introduction of breakfast cereals in the early 1900s as a result of the growing number of automobiles, which led to a decline in horse ownership and a subsequent grain glut; by persuading people to eat what had previously been horse feed, market equilibrium was restored. (A) by persuading people to eat what had previously been horse feed, market equilibrium was restored (B) persuading people to eat what had previously been horse feed restored market equilibrium (C) by persuading people to eat what had previously been horse feed, it restored market equilibrium (D) the persuasion of people to eat what had previously been horse feed restored market equilibrium (E) market equilibrium was restored when people were persuaded to eat former horse feed 答案是B，请问D错在哪里？谢谢作者: Snazzy 时间: 2004-3-3 01:13
Can anybody help explain this one, pls?