A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes. (A) reduced the amount of phosphates that municipalities had been allowed to dump (B) reduced the phosphate amount that municipalities had been dumping (C) reduces the phosphate amount municipalities have been allowed to dump (D) reduced the amount of phosphates that municipalities are allowed to dump (E) reduces the amount of phosphates allowed for dumping by municipalities 到底是A还是D阿?OG11上说是D,但是其他材料里的这道题答案都是A~~~ 请问到底选哪个阿?
[此贴子已经被作者于2007-7-20 13:19:15编辑过] |