标题: [求助]新東方GMAT語法全解 [打印本页] 作者: grumpy0317 时间: 2011-3-27 23:54 标题: [求助]新東方GMAT語法全解 Any medical test will sometimes fail to detect a condition when it is present and indicate that there is one when there is not. (B)when a condition is present and indicate that there is one (C)a condition when it is present and indicate that it is present (D)when a condition is present and indicate its presence (E)the presence of a condition when it is there and indicate its presence